8636495664 has 40 divisors (see below), whose sum is σ = 22625194752. Its totient is φ = 2838283840.

The previous prime is 8636495633. The next prime is 8636495677. The reversal of 8636495664 is 4665946368.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263684 + ... + 1270499.

Almost surely, 2^8636495664 is an apocalyptic number.

It is an amenable number.

8636495664 is an abundant number, since it is smaller than the sum of its proper divisors (13988699088).

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

8636495664 is a wasteful number, since it uses less digits than its factorization.

8636495664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534265 (or 2534259 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 57.

The square root of 8636495664 is about 92932.7480708496. The cubic root of 8636495664 is about 2051.6936757989.

The spelling of 8636495664 in words is "eight billion, six hundred thirty-six million, four hundred ninety-five thousand, six hundred sixty-four".