64663529296 has 20 divisors (see below), whose sum is σ = 126272092672. Its totient is φ = 32077182816.

The previous prime is 64663529267. The next prime is 64663529297. The reversal of 64663529296 is 69292536646.

It is a self number, because there is not a number n which added to its sum of digits gives 64663529296.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64663529297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15909270 + ... + 15913333.

Almost surely, 2^64663529296 is an apocalyptic number.

It is an amenable number.

64663529296 is a deficient number, since it is larger than the sum of its proper divisors (61608563376).

64663529296 is a wasteful number, since it uses less digits than its factorization.

64663529296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31822738 (or 31822732 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 58.

The spelling of 64663529296 in words is "sixty-four billion, six hundred sixty-three million, five hundred twenty-nine thousand, two hundred ninety-six".