56639168976 has 40 divisors (see below), whose sum is σ = 157573074400. Its totient is φ = 17427436416.

The previous prime is 56639168969. The next prime is 56639169001. The reversal of 56639168976 is 67986193665.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 45383326 + ... + 45384573.

It is an arithmetic number, because the mean of its divisors is an integer number (3939326860).

Almost surely, 2^56639168976 is an apocalyptic number.

It is an amenable number.

56639168976 is an abundant number, since it is smaller than the sum of its proper divisors (100933905424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56639168976 is a wasteful number, since it uses less digits than its factorization.

56639168976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90767923 (or 90767917 counting only the distinct ones).

The product of its digits is 88179840, while the sum is 66.

The spelling of 56639168976 in words is "fifty-six billion, six hundred thirty-nine million, one hundred sixty-eight thousand, nine hundred seventy-six".