8625664560 has 80 divisors (see below), whose sum is σ = 26754832224. Its totient is φ = 2298863616.

The previous prime is 8625664547. The next prime is 8625664571. The reversal of 8625664560 is 654665268.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454624 + ... + 473216.

Almost surely, 2^8625664560 is an apocalyptic number.

8625664560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8625664560 is an abundant number, since it is smaller than the sum of its proper divisors (18129167664).

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

8625664560 is a wasteful number, since it uses less digits than its factorization.

8625664560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20542 (or 20536 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The square root of 8625664560 is about 92874.4559068854. The cubic root of 8625664560 is about 2050.8356347381.

The spelling of 8625664560 in words is "eight billion, six hundred twenty-five million, six hundred sixty-four thousand, five hundred sixty".