56644531163 has 8 divisors (see below), whose sum is σ = 61796874240. Its totient is φ = 51492661480.

The previous prime is 56644531157. The next prime is 56644531187. The reversal of 56644531163 is 36113544665.

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

It is a cyclic number.

It is not a de Polignac number, because 56644531163 - 2¹² = 56644527067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56644539163) 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, 160406 + ... + 372852.

It is an arithmetic number, because the mean of its divisors is an integer number (7724609280).

Almost surely, 2^56644531163 is an apocalyptic number.

56644531163 is a deficient number, since it is larger than the sum of its proper divisors (5152343077).

56644531163 is a wasteful number, since it uses less digits than its factorization.

56644531163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236697.

The product of its digits is 777600, while the sum is 44.

The spelling of 56644531163 in words is "fifty-six billion, six hundred forty-four million, five hundred thirty-one thousand, one hundred sixty-three".