15565456136 has 16 divisors (see below), whose sum is σ = 29863957200. Its totient is φ = 7601734224.

The previous prime is 15565456133. The next prime is 15565456187. The reversal of 15565456136 is 63165456551.

It is not an unprimeable number, because it can be changed into a prime (15565456133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22623866 + ... + 22624553.

It is an arithmetic number, because the mean of its divisors is an integer number (1866497325).

Almost surely, 2^15565456136 is an apocalyptic number.

It is an amenable number.

15565456136 is a deficient number, since it is larger than the sum of its proper divisors (14298501064).

15565456136 is a wasteful number, since it uses less digits than its factorization.

15565456136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45248468 (or 45248464 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 47.

The spelling of 15565456136 in words is "fifteen billion, five hundred sixty-five million, four hundred fifty-six thousand, one hundred thirty-six".