56816906677 has 12 divisors (see below), whose sum is σ = 60608283840. Its totient is φ = 53250927296.

The previous prime is 56816906617. The next prime is 56816906687. The reversal of 56816906677 is 77660961865.

It is not a de Polignac number, because 56816906677 - 2²³ = 56808518069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56816906617) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 342223 + ... + 480364.

It is an arithmetic number, because the mean of its divisors is an integer number (5050690320).

Almost surely, 2^56816906677 is an apocalyptic number.

It is an amenable number.

56816906677 is a deficient number, since it is larger than the sum of its proper divisors (3791377163).

56816906677 is a wasteful number, since it uses less digits than its factorization.

56816906677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822860 (or 822843 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 56816906677 in words is "fifty-six billion, eight hundred sixteen million, nine hundred six thousand, six hundred seventy-seven".