15566747132 has 12 divisors (see below), whose sum is σ = 27242792976. Its totient is φ = 7783092000.

The previous prime is 15566747129. The next prime is 15566747149. The reversal of 15566747132 is 23174766551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99632 + ... + 202632.

It is an arithmetic number, because the mean of its divisors is an integer number (2270232748).

Almost surely, 2^15566747132 is an apocalyptic number.

It is an amenable number.

15566747132 is a deficient number, since it is larger than the sum of its proper divisors (11676045844).

15566747132 is a wasteful number, since it uses less digits than its factorization.

15566747132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140788 (or 140786 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 47.

The spelling of 15566747132 in words is "fifteen billion, five hundred sixty-six million, seven hundred forty-seven thousand, one hundred thirty-two".