11113992165 has 32 divisors (see below), whose sum is σ = 18857266560. Its totient is φ = 5570238464.

The previous prime is 11113992157. The next prime is 11113992167. The reversal of 11113992165 is 56129931111.

It is a cyclic number.

It is not a de Polignac number, because 11113992165 - 2³ = 11113992157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113992167) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134977 + ... + 201113.

It is an arithmetic number, because the mean of its divisors is an integer number (589289580).

Almost surely, 2^11113992165 is an apocalyptic number.

11113992165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11113992165 is a deficient number, since it is larger than the sum of its proper divisors (7743274395).

11113992165 is a wasteful number, since it uses less digits than its factorization.

11113992165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66821.

The product of its digits is 14580, while the sum is 39.

The spelling of 11113992165 in words is "eleven billion, one hundred thirteen million, nine hundred ninety-two thousand, one hundred sixty-five".