117715872165 has 8 divisors (see below), whose sum is σ = 188345395488. Its totient is φ = 62781798480.

The previous prime is 117715872143. The next prime is 117715872167. The reversal of 117715872165 is 561278517711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117715872165 - 2¹¹ = 117715870117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117715872167) by changing a digit.

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, 3923862391 + ... + 3923862420.

It is an arithmetic number, because the mean of its divisors is an integer number (23543174436).

Almost surely, 2^117715872165 is an apocalyptic number.

117715872165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117715872165 is a deficient number, since it is larger than the sum of its proper divisors (70629523323).

117715872165 is an equidigital number, since it uses as much as digits as its factorization.

117715872165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847724819.

The product of its digits is 823200, while the sum is 51.

The spelling of 117715872165 in words is "one hundred seventeen billion, seven hundred fifteen million, eight hundred seventy-two thousand, one hundred sixty-five".