15565565056012 has 12 divisors (see below), whose sum is σ = 27242168226336. Its totient is φ = 7782088419920.

The previous prime is 15565565056007. The next prime is 15565565056021. The reversal of 15565565056012 is 21065056556551.

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, 173476564 + ... + 173566267.

It is an arithmetic number, because the mean of its divisors is an integer number (2270180685528).

Almost surely, 2^{15565565056012} is an apocalyptic number.

It is an amenable number.

15565565056012 is a deficient number, since it is larger than the sum of its proper divisors (11676603170324).

15565565056012 is a wasteful number, since it uses less digits than its factorization.

15565565056012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347054048 (or 347054046 counting only the distinct ones).

The product of its (nonzero) digits is 6750000, while the sum is 52.

The spelling of 15565565056012 in words is "fifteen trillion, five hundred sixty-five billion, five hundred sixty-five million, fifty-six thousand, twelve".