6665566015160 has 128 divisors (see below), whose sum is σ = 16183983816000. Its totient is φ = 2456138059776.

The previous prime is 6665566015139. The next prime is 6665566015201. The reversal of 6665566015160 is 615106655666.

It is a happy number.

It is a super-2 number, since 2×6665566015160² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 665952236 + ... + 665962244.

Almost surely, 2^{6665566015160} 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 6665566015160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8091991908000).

6665566015160 is an abundant number, since it is smaller than the sum of its proper divisors (9518417800840).

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

6665566015160 is a wasteful number, since it uses less digits than its factorization.

6665566015160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12505 (or 12501 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 53.

The spelling of 6665566015160 in words is "six trillion, six hundred sixty-five billion, five hundred sixty-six million, fifteen thousand, one hundred sixty".