Odds Of A Perfect NCAA Bracket----The odds of picking perfect NCAA 2011 tournament bracket is 9,223,372,036,854,775,808 to 1 which can be possible brackets this year. That's the number nine follow by eighteen zeros. That's over 9.2 quintillion.

Some examples of just how big this number is. If every man, woman, and child on the planet randomly filled out 10 million brackets each, the odds would be LESS than 1% that even one would have a perfect bracket.

If you picked a perfect bracket, this is how many possible brackets now that the tournament has been decided, there's this many possibilities roughly 147 quintillion. Quintillion which is a billion billions.

March Madness begins on Tuesday, and 67 college basketball games will be played through the Final Four.

More 100 million Americans are expected to take part in the 2011 NCAA Basketball Tournament brackets, risking an estimated $3 Billion dollars in online and office bracket pools.