15668202660 has 96 divisors (see below), whose sum is σ = 50674522752. Its totient is φ = 3574917120.

The previous prime is 15668202659. The next prime is 15668202673. The reversal of 15668202660 is 6620286651.

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, 687007 + ... + 709446.

It is an arithmetic number, because the mean of its divisors is an integer number (527859612).

Almost surely, 2^15668202660 is an apocalyptic number.

15668202660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15668202660 is an abundant number, since it is smaller than the sum of its proper divisors (35006320092).

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

15668202660 is a wasteful number, since it uses less digits than its factorization.

15668202660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396493 (or 1396491 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 15668202660 in words is "fifteen billion, six hundred sixty-eight million, two hundred two thousand, six hundred sixty".