56647074665 has 8 divisors (see below), whose sum is σ = 68740270920. Its totient is φ = 44808472192.

The previous prime is 56647074623. The next prime is 56647074727.

56647074665 is nontrivially palindromic in base 10.

56647074665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 741309529 + 55905765136 = 27227^2 + 236444^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 56647074665 - 2²² = 56642880361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56647074665.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63647954 + ... + 63648843.

It is an arithmetic number, because the mean of its divisors is an integer number (8592533865).

Almost surely, 2^56647074665 is an apocalyptic number.

It is an amenable number.

56647074665 is a deficient number, since it is larger than the sum of its proper divisors (12093196255).

56647074665 is a wasteful number, since it uses less digits than its factorization.

56647074665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127296891.

The product of its (nonzero) digits is 25401600, while the sum is 56.

The spelling of 56647074665 in words is "fifty-six billion, six hundred forty-seven million, seventy-four thousand, six hundred sixty-five".