56163165623631 has 24 divisors (see below), whose sum is σ = 88501079119440. Its totient is φ = 34037687808000.

The previous prime is 56163165623563. The next prime is 56163165623641. The reversal of 56163165623631 is 13632656136165.

56163165623631 is a `hidden beast` number, since 5 + 6 + 1 + 6 + 3 + 1 + 6 + 5 + 623 + 6 + 3 + 1 = 666.

It is not a de Polignac number, because 56163165623631 - 2³¹ = 56161018139983 is a prime.

It is a super-2 number, since 2×56163165623631² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56163165623641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 778065 + ... + 10626933.

It is an arithmetic number, because the mean of its divisors is an integer number (3687544963310).

Almost surely, 2^{56163165623631} is an apocalyptic number.

56163165623631 is a deficient number, since it is larger than the sum of its proper divisors (32337913495809).

56163165623631 is a wasteful number, since it uses less digits than its factorization.

56163165623631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9906487 (or 9906484 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 54.

The spelling of 56163165623631 in words is "fifty-six trillion, one hundred sixty-three billion, one hundred sixty-five million, six hundred twenty-three thousand, six hundred thirty-one".