6565555515160 has 128 divisors (see below), whose sum is σ = 15312569832000. Its totient is φ = 2530578806784.

The previous prime is 6565555515019. The next prime is 6565555515173. The reversal of 6565555515160 is 615155555656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2347354882 + ... + 2347357678.

Almost surely, 2^{6565555515160} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6565555515160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7656284916000).

6565555515160 is an abundant number, since it is smaller than the sum of its proper divisors (8747014316840).

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

6565555515160 is a wasteful number, since it uses less digits than its factorization.

6565555515160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6173 (or 6169 counting only the distinct ones).

The product of its (nonzero) digits is 16875000, while the sum is 55.

The spelling of 6565555515160 in words is "six trillion, five hundred sixty-five billion, five hundred fifty-five million, five hundred fifteen thousand, one hundred sixty".