56656846281 has 12 divisors (see below), whose sum is σ = 87875925072. Its totient is φ = 32375340648.

The previous prime is 56656846229. The next prime is 56656846283. The reversal of 56656846281 is 18264865665.

It is not a de Polignac number, because 56656846281 - 2⁶ = 56656846217 is a prime.

It is a super-2 number, since 2×56656846281² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56656846283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192710215 + ... + 192710508.

It is an arithmetic number, because the mean of its divisors is an integer number (7322993756).

Almost surely, 2^56656846281 is an apocalyptic number.

It is an amenable number.

56656846281 is a deficient number, since it is larger than the sum of its proper divisors (31219078791).

56656846281 is a wasteful number, since it uses less digits than its factorization.

56656846281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385420740 (or 385420733 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 57.

The spelling of 56656846281 in words is "fifty-six billion, six hundred fifty-six million, eight hundred forty-six thousand, two hundred eighty-one".