11165616636 has 24 divisors (see below), whose sum is σ = 26544675024. Its totient is φ = 3651648000.

The previous prime is 11165616563. The next prime is 11165616647. The reversal of 11165616636 is 63661656111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8777365 + ... + 8778636.

It is an arithmetic number, because the mean of its divisors is an integer number (1106028126).

Almost surely, 2^11165616636 is an apocalyptic number.

It is an amenable number.

11165616636 is an abundant number, since it is smaller than the sum of its proper divisors (15379058388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11165616636 is a wasteful number, since it uses less digits than its factorization.

11165616636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17556061 (or 17556059 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The spelling of 11165616636 in words is "eleven billion, one hundred sixty-five million, six hundred sixteen thousand, six hundred thirty-six".