64 (number) 64 (number) 64 (sixty-four) is the natural number following 63 and preceding 65. Sixty-four is the square of 8, the cube of 4, and the sixth power of 2. It is the smallest number with exactly seven divisors. It is the lowest positive power of two that is adjacent to neither a Mersenne prime nor a Fermat prime. 64 is the sum of Euler's totient function for the first fourteen integers. It is also a dodecagonal number and a centered triangular number. 64 is also the first whole number that is both a perfect square and a perfect cube. Since
The Lady Is a Square as an advance from Greenslades. After learning of Burn’s fame, Joanna goes to his concert. When her mother discovers this, she grows furious and confronts both of them firing Burns and forbidding her daughter from seeing him again. In his anger, he calls her a "square". Their rift is not helped by his next song, "The Lady is a Square" which appears to be directly mocking her. However she relents when she discovers that he has secretly been paying her bills and that he is trying to abandon a concert of his, which is scheduled at the same time as