6504564560 has 40 divisors (see below), whose sum is σ = 16286431560. Its totient is φ = 2401684992.

The previous prime is 6504564559. The next prime is 6504564581. The reversal of 6504564560 is 654654056.

It can be written as a sum of positive squares in 4 ways, for example, as 1109955856 + 5394608704 = 33316^2 + 73448^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 3126155 + ... + 3128234.

It is an arithmetic number, because the mean of its divisors is an integer number (407160789).

Almost surely, 2^6504564560 is an apocalyptic number.

It is an amenable number.

6504564560 is an abundant number, since it is smaller than the sum of its proper divisors (9781867000).

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

6504564560 is a wasteful number, since it uses less digits than its factorization.

6504564560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6254415 (or 6254409 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The square root of 6504564560 is about 80650.8807143481. The cubic root of 6504564560 is about 1866.6923292957.

The spelling of 6504564560 in words is "six billion, five hundred four million, five hundred sixty-four thousand, five hundred sixty".