15115156564 has 12 divisors (see below), whose sum is σ = 27843709600. Its totient is φ = 7159810968.

The previous prime is 15115156541. The next prime is 15115156571. The reversal of 15115156564 is 46565151151.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99441744 + ... + 99441895.

Almost surely, 2^15115156564 is an apocalyptic number.

It is an amenable number.

15115156564 is a deficient number, since it is larger than the sum of its proper divisors (12728553036).

15115156564 is a wasteful number, since it uses less digits than its factorization.

15115156564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198883662 (or 198883660 counting only the distinct ones).

The product of its digits is 90000, while the sum is 40.

The spelling of 15115156564 in words is "fifteen billion, one hundred fifteen million, one hundred fifty-six thousand, five hundred sixty-four".