11117591118 has 32 divisors (see below), whose sum is σ = 24760836000. Its totient is φ = 3697602048.

The previous prime is 11117591071. The next prime is 11117591129. The reversal of 11117591118 is 81119571111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205021 + ... + 253512.

It is an arithmetic number, because the mean of its divisors is an integer number (773776125).

Almost surely, 2^11117591118 is an apocalyptic number.

11117591118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11117591118 is an abundant number, since it is smaller than the sum of its proper divisors (13643244882).

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

11117591118 is a wasteful number, since it uses less digits than its factorization.

11117591118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458993 (or 458987 counting only the distinct ones).

The product of its digits is 2520, while the sum is 36.

The spelling of 11117591118 in words is "eleven billion, one hundred seventeen million, five hundred ninety-one thousand, one hundred eighteen".