56013532161 has 8 divisors (see below), whose sum is σ = 77260044480. Its totient is φ = 36054687312.

The previous prime is 56013532109. The next prime is 56013532171. The reversal of 56013532161 is 16123531065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56013532161 - 2⁶ = 56013532097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56013532171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321916765 + ... + 321916938.

It is an arithmetic number, because the mean of its divisors is an integer number (9657505560).

Almost surely, 2^56013532161 is an apocalyptic number.

It is an amenable number.

56013532161 is a deficient number, since it is larger than the sum of its proper divisors (21246512319).

56013532161 is a wasteful number, since it uses less digits than its factorization.

56013532161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643833735.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 56013532161 in words is "fifty-six billion, thirteen million, five hundred thirty-two thousand, one hundred sixty-one".