117040081815 has 32 divisors (see below), whose sum is σ = 220310746560. Its totient is φ = 58749530112.

The previous prime is 117040081801. The next prime is 117040081861. The reversal of 117040081815 is 518180040711.

117040081815 is a `hidden beast` number, since 1 + 1 + 70 + 400 + 8 + 181 + 5 = 666.

It is not a de Polignac number, because 117040081815 - 2⁶ = 117040081751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117040081815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25496634 + ... + 25501223.

It is an arithmetic number, because the mean of its divisors is an integer number (6884710830).

Almost surely, 2^117040081815 is an apocalyptic number.

117040081815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117040081815 is a deficient number, since it is larger than the sum of its proper divisors (103270664745).

117040081815 is a wasteful number, since it uses less digits than its factorization.

117040081815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50997888 (or 50997882 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 36.

The spelling of 117040081815 in words is "one hundred seventeen billion, forty million, eighty-one thousand, eight hundred fifteen".