Here are the facts voted as the top ten listed here in reverse order:

9/ 153, 370, 371 and 407 are all the "sum of the cubes of their digits". E.g. 153= 1^{3} + 5^{3} + 3^{3}

8/ FOUR ... is the only number in the English language to have the same number of letters as the number itself.

7/ If you divide any square number by 8 you get a remainder of 0, 1 or 4.

6/ There are 12,988,816 different ways to cover a chess board with 32 dominoes.

5/ 69^{2} = 4761 and 69^{3} = 328509. These two answers use all the digits from 0 to 9 between them.

4/ You can chop a big lump of cheese into a maximum of 93 bits with 8 straight cuts. (See The Perfect Sausage for the relevant formula.)

3/ 8 is the only cube that is 1 less than a square.

2/ 10,112,359,550,561,797,752,808, 988,764,044,943,820,224,719 × 9

= 91,011,235,955,056,179,775,280,898,876,404,494,382,022,471

(The 9 at the end has moved to the front!)

1/ FORTY ... is the only number in the English language to have all its letters in alphabetical order.