11115643066165 has 32 divisors (see below), whose sum is σ = 14800907243520. Its totient is φ = 7945535304000.

The previous prime is 11115643066051. The next prime is 11115643066217. The reversal of 11115643066165 is 56166034651111.

It is not a de Polignac number, because 11115643066165 - 2⁷ = 11115643066037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16435440 + ... + 17098390.

It is an arithmetic number, because the mean of its divisors is an integer number (462528351360).

Almost surely, 2^{11115643066165} is an apocalyptic number.

It is an amenable number.

11115643066165 is a deficient number, since it is larger than the sum of its proper divisors (3685264177355).

11115643066165 is a wasteful number, since it uses less digits than its factorization.

11115643066165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668193.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 11115643066165 in words is "eleven trillion, one hundred fifteen billion, six hundred forty-three million, sixty-six thousand, one hundred sixty-five".