8163810656 has 24 divisors (see below), whose sum is σ = 16214743944. Its totient is φ = 4045780480.

The previous prime is 8163810637. The next prime is 8163810691. The reversal of 8163810656 is 6560183618.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125230 + ... + 1132461.

It is an arithmetic number, because the mean of its divisors is an integer number (675614331).

Almost surely, 2^8163810656 is an apocalyptic number.

It is an amenable number.

8163810656 is a deficient number, since it is larger than the sum of its proper divisors (8050933288).

8163810656 is a wasteful number, since it uses less digits than its factorization.

8163810656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257814 (or 2257806 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 8163810656 is about 90353.8081986587. The cubic root of 8163810656 is about 2013.5587602895.

The spelling of 8163810656 in words is "eight billion, one hundred sixty-three million, eight hundred ten thousand, six hundred fifty-six".