560645664 has 48 divisors (see below), whose sum is σ = 1519176960. Its totient is φ = 180852480.

The previous prime is 560645663. The next prime is 560645681. The reversal of 560645664 is 466546065.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (560645663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91219 + ... + 97170.

It is an arithmetic number, because the mean of its divisors is an integer number (31649520).

Almost surely, 2^560645664 is an apocalyptic number.

It is an amenable number.

560645664 is an abundant number, since it is smaller than the sum of its proper divisors (958531296).

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

560645664 is a wasteful number, since it uses less digits than its factorization.

560645664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188433 (or 188425 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The square root of 560645664 is about 23677.9573443319. The cubic root of 560645664 is about 824.5737199062.

The spelling of 560645664 in words is "five hundred sixty million, six hundred forty-five thousand, six hundred sixty-four".