117177520515 has 64 divisors (see below), whose sum is σ = 213576929280. Its totient is φ = 54303384960.

The previous prime is 117177520511. The next prime is 117177520517. The reversal of 117177520515 is 515025771711.

It is a happy number.

It is not a de Polignac number, because 117177520515 - 2² = 117177520511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117177520511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5526324 + ... + 5547486.

It is an arithmetic number, because the mean of its divisors is an integer number (3337139520).

Almost surely, 2^117177520515 is an apocalyptic number.

117177520515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117177520515 is a deficient number, since it is larger than the sum of its proper divisors (96399408765).

117177520515 is a wasteful number, since it uses less digits than its factorization.

117177520515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22664.

The product of its (nonzero) digits is 85750, while the sum is 42.

The spelling of 117177520515 in words is "one hundred seventeen billion, one hundred seventy-seven million, five hundred twenty thousand, five hundred fifteen".