117105206715 has 96 divisors (see below), whose sum is σ = 235489153536. Its totient is φ = 52727915520.

The previous prime is 117105206633. The next prime is 117105206723. The reversal of 117105206715 is 517602501711.

It is a happy number.

117105206715 is a `hidden beast` number, since 1 + 1 + 71 + 0 + 520 + 67 + 1 + 5 = 666.

It is not a de Polignac number, because 117105206715 - 2⁸ = 117105206459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117105206715.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8804220 + ... + 8817510.

It is an arithmetic number, because the mean of its divisors is an integer number (2453012016).

Almost surely, 2^117105206715 is an apocalyptic number.

117105206715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117105206715 is an abundant number, since it is smaller than the sum of its proper divisors (118383946821).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117105206715 is a wasteful number, since it uses less digits than its factorization.

117105206715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13729 (or 13726 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 36.

The spelling of 117105206715 in words is "one hundred seventeen billion, one hundred five million, two hundred six thousand, seven hundred fifteen".