5665551165660 has 48 divisors (see below), whose sum is σ = 16064347622400. Its totient is φ = 1491689419584.

The previous prime is 5665551165623. The next prime is 5665551165667. The reversal of 5665551165660 is 665611555665.

It is a super-2 number, since 2×5665551165660² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5665551165660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5665551165667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597627240 + ... + 597636719.

It is an arithmetic number, because the mean of its divisors is an integer number (334673908800).

Almost surely, 2^{5665551165660} is an apocalyptic number.

It is an amenable number.

5665551165660 is an abundant number, since it is smaller than the sum of its proper divisors (10398796456740).

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

5665551165660 is a wasteful number, since it uses less digits than its factorization.

5665551165660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195264050 (or 1195264048 counting only the distinct ones).

The product of its (nonzero) digits is 24300000, while the sum is 57.

The spelling of 5665551165660 in words is "five trillion, six hundred sixty-five billion, five hundred fifty-one million, one hundred sixty-five thousand, six hundred sixty".