18117035355 has 16 divisors (see below), whose sum is σ = 29312958240. Its totient is φ = 9553851648.

The previous prime is 18117035333. The next prime is 18117035383. The reversal of 18117035355 is 55353071181.

It is not a de Polignac number, because 18117035355 - 2⁶ = 18117035291 is a prime.

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, 6784072 + ... + 6786741.

It is an arithmetic number, because the mean of its divisors is an integer number (1832059890).

Almost surely, 2^18117035355 is an apocalyptic number.

18117035355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18117035355 is a deficient number, since it is larger than the sum of its proper divisors (11195922885).

18117035355 is a wasteful number, since it uses less digits than its factorization.

18117035355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13570910.

The product of its (nonzero) digits is 63000, while the sum is 39.

The spelling of 18117035355 in words is "eighteen billion, one hundred seventeen million, thirty-five thousand, three hundred fifty-five".