56601656271 has 12 divisors (see below), whose sum is σ = 85312641648. Its totient is φ = 36093809664.

The previous prime is 56601656261. The next prime is 56601656341. The reversal of 56601656271 is 17265610665.

56601656271 is a `hidden beast` number, since 5 + 6 + 6 + 0 + 16 + 5 + 627 + 1 = 666.

It is not a de Polignac number, because 56601656271 - 2⁷ = 56601656143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56601656201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136718770 + ... + 136719183.

It is an arithmetic number, because the mean of its divisors is an integer number (7109386804).

Almost surely, 2^56601656271 is an apocalyptic number.

56601656271 is a deficient number, since it is larger than the sum of its proper divisors (28710985377).

56601656271 is a wasteful number, since it uses less digits than its factorization.

56601656271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273437982 (or 273437979 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 56601656271 in words is "fifty-six billion, six hundred one million, six hundred fifty-six thousand, two hundred seventy-one".