Help me identify my friends PD

I 'm not even sure if it's a Personality Disorder so i hope someone here can shed some light.
I want to know how to be around someone like this... I've never dealt with anyone who has this before, so I'm going to need guidance, some tips...

The subject is a buddy of mine now on 4 years.
He's Male. White (Irish)
54 years old.
He's been married and divorced twice.
He’s been in show business.
Started two successful construction businesses from the ground up, by himself.
Started two other successful telephone businesses by himself.
Eventually, they all failed.
Never had a lot of long time close friends.
Met his family. (Mother and cousin. That's all)
His mother has been through 6 divorces.
He "say's" he cut off his older Brother, sister and biological father. So I never met any of them.
His cousin is an accountant but comes across very simple minded and nervous like. Cool guy though.
His mother never seems completely happy. Nice lady though.
Extremely prejudice. Blacks, Hispanics, Asians, Gays, trash, you name it.
He's boasts a lot. Yeah, all us guys are like that, but not like this. I mean, way over-the-top ‘boasting’. Almost to the level of 'embarrassing'.
Yeah, his social skills suck. No awareness levels. He demands attention and affirmation constantly.
Tells the same jokes over and over again.
Gets irritable often.
Spits out words and sounds like he’s got turrets or something.
He’s defensive all the time. Reads between the lines to deep as though the world is against him or something. He’s good at ‘name-calling’ and putting others down. Damn.
His attention span sucks. I can put out about one sentence and then after that, he’s off into space.
A man of irony… He gets mad at others if they talk over him even though he’s doing more of that himself. I hear him say this often… “No, you didn’t hear me.” I mean, he says that often!
I’ve learned that the only way to keep his attention or to keep him happy, is to talk about him, how great he is and whatever new business project he’s got going on.
He tends to mumble a lot. He does NOT like to repeat himself.
Don’t get me wrong, he’s a good buddy, at a distant. Feel bad about that. Great guy and brilliant as hell! Sometimes I think he’s a genius. But just no room for wisdom, reality or sometimes, anyone. I admit, he can be tough to be around sometimes.
The investment risks he makes are extremely risky and high. He started out several new businesses in the past that were successful. Yo, he’s made millions. Then after a few months of success, they would bomb and he would be back on the streets. His credit… well… let’s just say, he has none. Borrows his mother’s name or other friends names to get an apartment or car… stuff like that.
Presently, he’s in the middle of starting another new business.
Three years ago, I’ve witnessed him verbally making a ton of empty promises to potential employees the other day. I asked him why he didn’t just tell them the truth. He told me because he didn’t want them to lose their interest in the project or see them disappear. He still does this.
My greatest concern for him was triggered about a week ago. He went into a spiral of sudden silence. Yeah, I’ve witnessed this before, but never gave it much thought until now. The cycle is becoming more apparent to me now. Even when he is present, he isn’t. His personality was completely distant. It was as though he were a ghost. And it happened, like that… snap. I don’t know what to think, but that today, I did talk to him on the phone and it sounds like he’s back to his some ol’ self again.

He will NOT go to a psychiatrist.
He is i major denial. He calls everybody else Bipolar.
He judges everyone that passes by. Fat, ugly, whatever. Yeah, he's Mr. perfect and he’s ALWAYS right.

yeah, sex, sex, sex is all he talks about man. When me and the guys went to the strip bars, it started out like a casual get together, as so I thought. Then I found out later, he was taking the strippers home… One at a time, sometimes for a full week to a month, then he's stop sudden like. But he’d be right at it again a few weeks later. Man does the money fly out of his hands!
When he sleeps? Not sure. I don't live with the guy but I heard from a past girlfriend that he'd go to bed at midnight and wake up a 5am all the time.
He can be a real mean mo-fo. Bully. Know what I mean? mostly to women. I don't get that part. I'd hear him cutting some girl down he just met two months ago. Needless to say, she usually disappears within that time and he's off with a new chick the very next day. Sometimes, he'd be jugglin' 3 to 5 chicks at the same time!
By the way, he doesn’t drink or smoke. He use to drink two years ago til he met some chick and it’s like he copies her and stuff. Know what I mean? I don’t get it.
Ok, so can someone tell me what I’m dealing with here? I mean, these symptoms are pretty bad. I’m not exaggerating here. Promise.
I’m just worried for my friend here.
Thanks.

sami3000 if you want to identify what PD he may have, read some of the causes syptoms and treament posts on the different PDs listed. However, if your friend doesn't want treatment then there's not alot you can do. It will be up to you to decide whether you can be friends with him or not. I have had to distance myself from my son because of his bi-polar (he refuses help) and his histrionic personality disordered wife. You may find that if you approach your friend with offers of help he may get angry and part ways with you if he isn't ready or willing. My advice is that if you feel this friendship is going to hurt you in the long run, I would step away. You can't deal with someone who doesn't want to be dealt with.

Here's some information on NPD:
http://www.bullyeq.com/bol/workbully/npd.htm

More importantly remember what Socrates said:"Know Thyself" or Sun-Tzu:"Know your Yourself, Know your Enemy".