117100215705 has 64 divisors (see below), whose sum is σ = 206906112000. Its totient is φ = 56081963520.

The previous prime is 117100215649. The next prime is 117100215709. The reversal of 117100215705 is 507512001711.

It is not a de Polignac number, because 117100215705 - 2²⁵ = 117066661273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117100215709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4551237 + ... + 4576893.

It is an arithmetic number, because the mean of its divisors is an integer number (3232908000).

Almost surely, 2^117100215705 is an apocalyptic number.

117100215705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117100215705 is a deficient number, since it is larger than the sum of its proper divisors (89805896295).

117100215705 is a wasteful number, since it uses less digits than its factorization.

117100215705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26014.

The product of its (nonzero) digits is 2450, while the sum is 30.

The spelling of 117100215705 in words is "one hundred seventeen billion, one hundred million, two hundred fifteen thousand, seven hundred five".