16117733231 has 16 divisors (see below), whose sum is σ = 17181642240. Its totient is φ = 15075627840.

The previous prime is 16117733209. The next prime is 16117733257. The reversal of 16117733231 is 13233771161.

It is a cyclic number.

It is not a de Polignac number, because 16117733231 - 2²⁶ = 16050624367 is a prime.

It is a super-2 number, since 2×16117733231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16117733191 and 16117733200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16117733131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3771626 + ... + 3775896.

It is an arithmetic number, because the mean of its divisors is an integer number (1073852640).

Almost surely, 2^16117733231 is an apocalyptic number.

16117733231 is a deficient number, since it is larger than the sum of its proper divisors (1063909009).

16117733231 is a wasteful number, since it uses less digits than its factorization.

16117733231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6766.

The product of its digits is 15876, while the sum is 35.

The spelling of 16117733231 in words is "sixteen billion, one hundred seventeen million, seven hundred thirty-three thousand, two hundred thirty-one".