8565318664 has 32 divisors (see below), whose sum is σ = 18987163200. Its totient is φ = 3544269120.

The previous prime is 8565318557. The next prime is 8565318667. The reversal of 8565318664 is 4668135658.

It is not an unprimeable number, because it can be changed into a prime (8565318667) 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, 2635482 + ... + 2638729.

It is an arithmetic number, because the mean of its divisors is an integer number (593348850).

Almost surely, 2^8565318664 is an apocalyptic number.

It is an amenable number.

8565318664 is an abundant number, since it is smaller than the sum of its proper divisors (10421844536).

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

8565318664 is a wasteful number, since it uses less digits than its factorization.

8565318664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274253 (or 5274249 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 52.

The square root of 8565318664 is about 92549.0068234122. The cubic root of 8565318664 is about 2046.0418301245.

The spelling of 8565318664 in words is "eight billion, five hundred sixty-five million, three hundred eighteen thousand, six hundred sixty-four".