6564973568 has 44 divisors (see below), whose sum is σ = 13134076032. Its totient is φ = 3279851520.

The previous prime is 6564973517. The next prime is 6564973579. The reversal of 6564973568 is 8653794656.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2160146 + ... + 2163182.

It is an arithmetic number, because the mean of its divisors is an integer number (298501728).

Almost surely, 2^6564973568 is an apocalyptic number.

It is an amenable number.

6564973568 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

6564973568 is a wasteful number, since it uses less digits than its factorization.

6564973568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5168 (or 5150 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 59.

The square root of 6564973568 is about 81024.5244848743. The cubic root of 6564973568 is about 1872.4532956385.

The spelling of 6564973568 in words is "six billion, five hundred sixty-four million, nine hundred seventy-three thousand, five hundred sixty-eight".