117512111505 has 16 divisors (see below), whose sum is σ = 188267770944. Its totient is φ = 62590328640.

The previous prime is 117512111491. The next prime is 117512111513. The reversal of 117512111505 is 505111215711.

It is not a de Polignac number, because 117512111505 - 2⁶ = 117512111441 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5163111 + ... + 5185820.

It is an arithmetic number, because the mean of its divisors is an integer number (11766735684).

Almost surely, 2^117512111505 is an apocalyptic number.

117512111505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117512111505 is a deficient number, since it is larger than the sum of its proper divisors (70755659439).

117512111505 is a wasteful number, since it uses less digits than its factorization.

117512111505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10349696.

The product of its (nonzero) digits is 1750, while the sum is 30.

The spelling of 117512111505 in words is "one hundred seventeen billion, five hundred twelve million, one hundred eleven thousand, five hundred five".