56680408665 has 64 divisors (see below), whose sum is σ = 103197888000. Its totient is φ = 29508192000.

The previous prime is 56680408663. The next prime is 56680408699.

It is a happy number.

56680408665 is nontrivially palindromic in base 10.

56680408665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56680408665 - 2¹ = 56680408663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56680408661) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 938811 + ... + 997359.

It is an arithmetic number, because the mean of its divisors is an integer number (1612467000).

Almost surely, 2^56680408665 is an apocalyptic number.

It is an amenable number.

56680408665 is a deficient number, since it is larger than the sum of its proper divisors (46517479335).

56680408665 is a wasteful number, since it uses less digits than its factorization.

56680408665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58735 (or 58729 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 56680408665 in words is "fifty-six billion, six hundred eighty million, four hundred eight thousand, six hundred sixty-five".