56677745331 has 20 divisors (see below), whose sum is σ = 88347921552. Its totient is φ = 36142329168.

The previous prime is 56677745317. The next prime is 56677745347. The reversal of 56677745331 is 13354777665.

56677745331 is a `hidden beast` number, since 566 + 7 + 7 + 7 + 45 + 3 + 31 = 666.

It is not a de Polignac number, because 56677745331 - 2¹⁰ = 56677744307 is a prime.

It is a super-2 number, since 2×56677745331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56677741331) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15209556 + ... + 15213281.

Almost surely, 2^56677745331 is an apocalyptic number.

56677745331 is a deficient number, since it is larger than the sum of its proper divisors (31670176221).

56677745331 is a wasteful number, since it uses less digits than its factorization.

56677745331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30422872 (or 30422863 counting only the distinct ones).

The product of its digits is 11113200, while the sum is 54.

The spelling of 56677745331 in words is "fifty-six billion, six hundred seventy-seven million, seven hundred forty-five thousand, three hundred thirty-one".