2163160656 has 240 divisors, whose sum is σ = 6551580672. Its totient is φ = 664934400.

The previous prime is 2163160639. The next prime is 2163160679. The reversal of 2163160656 is 6560613612.

2163160656 is a `hidden beast` number, since 2 + 16 + 31 + 606 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2163160656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9700161 + ... + 9700383.

Almost surely, 2^2163160656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2163160656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3275790336).

2163160656 is an abundant number, since it is smaller than the sum of its proper divisors (4388420016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2163160656 is a wasteful number, since it uses less digits than its factorization.

2163160656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2163160656 is about 46509.7909692142. The cubic root of 2163160656 is about 1293.2910092313.

The spelling of 2163160656 in words is "two billion, one hundred sixty-three million, one hundred sixty thousand, six hundred fifty-six".