8645704560 has 80 divisors (see below), whose sum is σ = 29779656480. Its totient is φ = 2305520640.

The previous prime is 8645704541. The next prime is 8645704597. The reversal of 8645704560 is 654075468.

8645704560 is a `hidden beast` number, since 86 + 4 + 5 + 7 + 0 + 4 + 560 = 666.

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 (45).

It is a congruent number.

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, 1999161 + ... + 2003480.

It is an arithmetic number, because the mean of its divisors is an integer number (372245706).

Almost surely, 2^8645704560 is an apocalyptic number.

8645704560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8645704560 is an abundant number, since it is smaller than the sum of its proper divisors (21133951920).

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

8645704560 is a wasteful number, since it uses less digits than its factorization.

8645704560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002663 (or 4002651 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The square root of 8645704560 is about 92982.2808926518. The cubic root of 8645704560 is about 2052.4226413053.

The spelling of 8645704560 in words is "eight billion, six hundred forty-five million, seven hundred four thousand, five hundred sixty".