56643034665 has 32 divisors (see below), whose sum is σ = 105331368960. Its totient is φ = 25455075264.

The previous prime is 56643034633. The next prime is 56643034727.

56643034665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56643034665 - 2⁵ = 56643034633 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4565479 + ... + 4577868.

It is an arithmetic number, because the mean of its divisors is an integer number (3291605280).

Almost surely, 2^56643034665 is an apocalyptic number.

It is an amenable number.

56643034665 is a deficient number, since it is larger than the sum of its proper divisors (48688334295).

56643034665 is a wasteful number, since it uses less digits than its factorization.

56643034665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9143421.

The product of its (nonzero) digits is 4665600, while the sum is 48.

The spelling of 56643034665 in words is "fifty-six billion, six hundred forty-three million, thirty-four thousand, six hundred sixty-five".