56683438665 has 32 divisors (see below), whose sum is σ = 104675970816. Its totient is φ = 25655865600.

The previous prime is 56683438619. The next prime is 56683438681.

It is a happy number.

56683438665 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56683438665 - 2⁶ = 56683438601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56683438599 and 56683438608.

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, 2661882 + ... + 2683091.

It is an arithmetic number, because the mean of its divisors is an integer number (3271124088).

Almost surely, 2^56683438665 is an apocalyptic number.

It is an amenable number.

56683438665 is a deficient number, since it is larger than the sum of its proper divisors (47992532151).

56683438665 is a wasteful number, since it uses less digits than its factorization.

56683438665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5345089.

The product of its digits is 74649600, while the sum is 60.

The spelling of 56683438665 in words is "fifty-six billion, six hundred eighty-three million, four hundred thirty-eight thousand, six hundred sixty-five".