56705670017157 has 32 divisors (see below), whose sum is σ = 86571751698432. Its totient is φ = 32342124556224.

The previous prime is 56705670017141. The next prime is 56705670017237. The reversal of 56705670017157 is 75171007650765.

It is not a de Polignac number, because 56705670017157 - 2⁴ = 56705670017141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56705670017097 and 56705670017106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56705670017657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25424538 + ... + 27564804.

It is an arithmetic number, because the mean of its divisors is an integer number (2705367240576).

Almost surely, 2^{56705670017157} is an apocalyptic number.

It is an amenable number.

56705670017157 is a deficient number, since it is larger than the sum of its proper divisors (29866081681275).

56705670017157 is a wasteful number, since it uses less digits than its factorization.

56705670017157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142657.

The product of its (nonzero) digits is 10804500, while the sum is 57.

The spelling of 56705670017157 in words is "fifty-six trillion, seven hundred five billion, six hundred seventy million, seventeen thousand, one hundred fifty-seven".