Trestrigintacentillion
This is of course the name given to the number 10402. But just in case you think this is a BIG number then take a look at big numbers. The Graham's number is reputably the largest number and so big that new notations had to be devised to even write it down! Expressed another way, if all the material in the universe were turned into pen and ink it would not be enough to write the number down. [ref].