11165513516 has 12 divisors (see below), whose sum is σ = 19550884080. Its totient is φ = 5579546640.

The previous prime is 11165513479. The next prime is 11165513537. The reversal of 11165513516 is 61531556111.

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, 794696 + ... + 808623.

It is an arithmetic number, because the mean of its divisors is an integer number (1629240340).

Almost surely, 2^11165513516 is an apocalyptic number.

It is an amenable number.

11165513516 is a deficient number, since it is larger than the sum of its proper divisors (8385370564).

11165513516 is a wasteful number, since it uses less digits than its factorization.

11165513516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605064 (or 1605062 counting only the distinct ones).

The product of its digits is 13500, while the sum is 35.

The spelling of 11165513516 in words is "eleven billion, one hundred sixty-five million, five hundred thirteen thousand, five hundred sixteen".