56997641668 has 24 divisors (see below), whose sum is σ = 108845392320. Its totient is φ = 25900468320.

The previous prime is 56997641579. The next prime is 56997641677. The reversal of 56997641668 is 86614679965.

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, 34663 + ... + 339406.

It is an arithmetic number, because the mean of its divisors is an integer number (4535224680).

Almost surely, 2^56997641668 is an apocalyptic number.

It is an amenable number.

56997641668 is a deficient number, since it is larger than the sum of its proper divisors (51847750652).

56997641668 is a wasteful number, since it uses less digits than its factorization.

56997641668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377547 (or 377545 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 67.

The spelling of 56997641668 in words is "fifty-six billion, nine hundred ninety-seven million, six hundred forty-one thousand, six hundred sixty-eight".