56816685441 has 40 divisors (see below), whose sum is σ = 87233256000. Its totient is φ = 36826568352.

The previous prime is 56816685437. The next prime is 56816685461. The reversal of 56816685441 is 14458661865.

It is a happy number.

56816685441 is a `hidden beast` number, since 5 + 68 + 1 + 66 + 85 + 441 = 666.

It is not a de Polignac number, because 56816685441 - 2² = 56816685437 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56816685461) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4486180 + ... + 4498826.

It is an arithmetic number, because the mean of its divisors is an integer number (2180831400).

Almost surely, 2^56816685441 is an apocalyptic number.

It is an amenable number.

56816685441 is a deficient number, since it is larger than the sum of its proper divisors (30416570559).

56816685441 is a wasteful number, since it uses less digits than its factorization.

56816685441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14195 (or 14186 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The spelling of 56816685441 in words is "fifty-six billion, eight hundred sixteen million, six hundred eighty-five thousand, four hundred forty-one".