11515967132 has 12 divisors (see below), whose sum is σ = 20269434696. Its totient is φ = 5724700080.

The previous prime is 11515967087. The next prime is 11515967153. The reversal of 11515967132 is 23176951511.

It is a self number, because there is not a number n which added to its sum of digits gives 11515967132.

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, 8320094 + ... + 8321477.

It is an arithmetic number, because the mean of its divisors is an integer number (1689119558).

Almost surely, 2^11515967132 is an apocalyptic number.

It is an amenable number.

11515967132 is a deficient number, since it is larger than the sum of its proper divisors (8753467564).

11515967132 is a wasteful number, since it uses less digits than its factorization.

11515967132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16641748 (or 16641746 counting only the distinct ones).

The product of its digits is 56700, while the sum is 41.

The spelling of 11515967132 in words is "eleven billion, five hundred fifteen million, nine hundred sixty-seven thousand, one hundred thirty-two".