656055617157 has 64 divisors (see below), whose sum is σ = 995584128000. Its totient is φ = 426874406400.

The previous prime is 656055617153. The next prime is 656055617179. The reversal of 656055617157 is 751716550656.

656055617157 is a `hidden beast` number, since 6 + 5 + 6 + 0 + 5 + 5 + 617 + 15 + 7 = 666.

It is not a de Polignac number, because 656055617157 - 2² = 656055617153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656055617153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 107178057 + ... + 107184177.

It is an arithmetic number, because the mean of its divisors is an integer number (15556002000).

Almost surely, 2^656055617157 is an apocalyptic number.

It is an amenable number.

656055617157 is a deficient number, since it is larger than the sum of its proper divisors (339528510843).

656055617157 is a wasteful number, since it uses less digits than its factorization.

656055617157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6779 (or 6773 counting only the distinct ones).

The product of its (nonzero) digits is 6615000, while the sum is 54.

The spelling of 656055617157 in words is "six hundred fifty-six billion, fifty-five million, six hundred seventeen thousand, one hundred fifty-seven".