Googol
From Wikislippy
Googol (pronounced Google) is the number that is the number one followed by a hundred zeros or 10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000