If you fill out a March Madness bracket for the NCAA tournament this year it might just win you $1 billion.

If you don't usually fill one out, maybe this year you should.

American Business tycoon, Warren Buffet, will award $1 billion to anyone who can guess every single winner of the upcoming men's NCAA basketball tournament correctly - that's 'billion' with a 'b'.

The contest, sponsored by Quicken Loans based in Detroit, is free to enter.

In an article in the LA Times, it's reported that Quicken cut Buffet a hefty check (speculated to be worth millions) just to cover the $1 billion prize.

All you need to do to enter is:

1) Sign up at Quickenloansbracket.com (but be aware the contest is only open to the first 15 million people who register)

2) Predict and fill out an absolutely perfect bracket for 64 men's collegiate basketball teams and 63 games.

Sounds easy enough, but what are the chances of a person actually predicting this without error?

In a CBS Sports article, it's estimated that the odds are supposedly 1 in 9.2 quintillion. If that number's a bit abstract it looks like this: 92,000,000,000,000,000,000 (that's 18 zeroes).

Safe to say Buffet probably won't have shell out the cash, but it's not impossible.

The contest has provided Quicken with a large amount of publicity already, and with every new entry the company gains personal information such as, first and last name, date of birth, address, and mortgage details with the option to opt-in for Quicken emails.

Experts are touting the contest as one clever marketing ploy on Quicken's behalf.

Not that Buffet doesn't have the money, but he's said that he'll make an offer to anyone making it to the Final Four with a perfect bracket - probably not close to $1 billion but probably worth more than the office bracket you entered.

Yahoo Sports is handling the tech support, boosting their marketing strategy as well. Entrants are required to sign up for a free account to submit their bracket to the ad-based website.