6516560320 has 28 divisors (see below), whose sum is σ = 15517560024. Its totient is φ = 2606624000.

The previous prime is 6516560317. The next prime is 6516560329. The reversal of 6516560320 is 230656156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6516560329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10181806 + ... + 10182445.

Almost surely, 2^6516560320 is an apocalyptic number.

It is an amenable number.

6516560320 is an abundant number, since it is smaller than the sum of its proper divisors (9000999704).

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

6516560320 is a wasteful number, since it uses less digits than its factorization.

6516560320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20364268 (or 20364258 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 6516560320 is about 80725.2148959667. The cubic root of 6516560320 is about 1867.8391466144.

The spelling of 6516560320 in words is "six billion, five hundred sixteen million, five hundred sixty thousand, three hundred twenty".