15556660533132 has 48 divisors (see below), whose sum is σ = 37711721305440. Its totient is φ = 4985253134848.

The previous prime is 15556660533107. The next prime is 15556660533179. The reversal of 15556660533132 is 23133506665551.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95848203 + ... + 96010370.

It is an arithmetic number, because the mean of its divisors is an integer number (785660860530).

Almost surely, 2^{15556660533132} is an apocalyptic number.

15556660533132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15556660533132 is an abundant number, since it is smaller than the sum of its proper divisors (22155060772308).

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

15556660533132 is a wasteful number, since it uses less digits than its factorization.

15556660533132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191858842 (or 191858840 counting only the distinct ones).

The product of its (nonzero) digits is 7290000, while the sum is 51.

The spelling of 15556660533132 in words is "fifteen trillion, five hundred fifty-six billion, six hundred sixty million, five hundred thirty-three thousand, one hundred thirty-two".