56997641658 has 8 divisors (see below), whose sum is σ = 113995283328. Its totient is φ = 18999213884.

The previous prime is 56997641579. The next prime is 56997641677. The reversal of 56997641658 is 85614679965.

It is a sphenic number, since it is the product of 3 distinct primes.

56997641658 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4749803466 + ... + 4749803477.

It is an arithmetic number, because the mean of its divisors is an integer number (14249410416).

Almost surely, 2^56997641658 is an apocalyptic number.

56997641658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56997641658 is a wasteful number, since it uses less digits than its factorization.

56997641658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9499606948.

The product of its digits is 97977600, while the sum is 66.

The spelling of 56997641658 in words is "fifty-six billion, nine hundred ninety-seven million, six hundred forty-one thousand, six hundred fifty-eight".