15116220664 has 32 divisors (see below), whose sum is σ = 28674486000. Its totient is φ = 7469769472.

The previous prime is 15116220661. The next prime is 15116220677. The reversal of 15116220664 is 46602261151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15116220661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2362782 + ... + 2369170.

Almost surely, 2^15116220664 is an apocalyptic number.

It is an amenable number.

15116220664 is a deficient number, since it is larger than the sum of its proper divisors (13558265336).

15116220664 is a wasteful number, since it uses less digits than its factorization.

15116220664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9807 (or 9803 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 15116220664 in words is "fifteen billion, one hundred sixteen million, two hundred twenty thousand, six hundred sixty-four".