15907965966 has 48 divisors (see below), whose sum is σ = 34971231984. Its totient is φ = 5225254272.

The previous prime is 15907965959. The next prime is 15907965991. The reversal of 15907965966 is 66956970951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1620525 + ... + 1630311.

It is an arithmetic number, because the mean of its divisors is an integer number (728567333).

Almost surely, 2^15907965966 is an apocalyptic number.

15907965966 is an abundant number, since it is smaller than the sum of its proper divisors (19063266018).

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

15907965966 is a wasteful number, since it uses less digits than its factorization.

15907965966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11105 (or 11102 counting only the distinct ones).

The product of its (nonzero) digits is 27556200, while the sum is 63.

The spelling of 15907965966 in words is "fifteen billion, nine hundred seven million, nine hundred sixty-five thousand, nine hundred sixty-six".