15955941564 has 36 divisors (see below), whose sum is σ = 40363727040. Its totient is φ = 5314605120.

The previous prime is 15955941511. The next prime is 15955941601. The reversal of 15955941564 is 46514955951.

15955941564 is a `hidden beast` number, since 1 + 595 + 5 + 9 + 41 + 5 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 15955941564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120204 + ... + 215315.

It is an arithmetic number, because the mean of its divisors is an integer number (1121214640).

Almost surely, 2^15955941564 is an apocalyptic number.

It is an amenable number.

15955941564 is an abundant number, since it is smaller than the sum of its proper divisors (24407785476).

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

15955941564 is a wasteful number, since it uses less digits than its factorization.

15955941564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336850 (or 336845 counting only the distinct ones).

The product of its digits is 4860000, while the sum is 54.

The spelling of 15955941564 in words is "fifteen billion, nine hundred fifty-five million, nine hundred forty-one thousand, five hundred sixty-four".