117342081855 has 96 divisors (see below), whose sum is σ = 218464646400. Its totient is φ = 58086222336.

The previous prime is 117342081823. The next prime is 117342081859. The reversal of 117342081855 is 558180243711.

117342081855 is a `hidden beast` number, since 1 + 1 + 73 + 420 + 81 + 85 + 5 = 666.

It is not a de Polignac number, because 117342081855 - 2⁵ = 117342081823 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 117342081855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117342081859) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15482827 + ... + 15490403.

It is an arithmetic number, because the mean of its divisors is an integer number (2275673400).

Almost surely, 2^117342081855 is an apocalyptic number.

117342081855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117342081855 is a deficient number, since it is larger than the sum of its proper divisors (101122564545).

117342081855 is a wasteful number, since it uses less digits than its factorization.

117342081855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7973 (or 7970 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The spelling of 117342081855 in words is "one hundred seventeen billion, three hundred forty-two million, eighty-one thousand, eight hundred fifty-five".