117776731766 has 16 divisors (see below), whose sum is σ = 180784099584. Its totient is φ = 57515524584.

The previous prime is 117776731747. The next prime is 117776731871. The reversal of 117776731766 is 667137677711.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2133671 + ... + 2188173.

It is an arithmetic number, because the mean of its divisors is an integer number (11299006224).

Almost surely, 2^117776731766 is an apocalyptic number.

117776731766 is a deficient number, since it is larger than the sum of its proper divisors (63007367818).

117776731766 is a wasteful number, since it uses less digits than its factorization.

117776731766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79675.

The product of its digits is 10890936, while the sum is 59.

The spelling of 117776731766 in words is "one hundred seventeen billion, seven hundred seventy-six million, seven hundred thirty-one thousand, seven hundred sixty-six".