6560215656 has 64 divisors (see below), whose sum is σ = 16501605120. Its totient is φ = 2173301760.

The previous prime is 6560215637. The next prime is 6560215703. The reversal of 6560215656 is 6565120656.

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, 5328561 + ... + 5329791.

It is an arithmetic number, because the mean of its divisors is an integer number (257837580).

Almost surely, 2^6560215656 is an apocalyptic number.

It is an amenable number.

6560215656 is an abundant number, since it is smaller than the sum of its proper divisors (9941389464).

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

6560215656 is a wasteful number, since it uses less digits than its factorization.

6560215656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426 (or 2422 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The square root of 6560215656 is about 80995.1582256619. The cubic root of 6560215656 is about 1872.0008378074. Note that the first 3 decimals are identical.

The spelling of 6560215656 in words is "six billion, five hundred sixty million, two hundred fifteen thousand, six hundred fifty-six".