117660505 has 16 divisors (see below), whose sum is σ = 145626624. Its totient is φ = 91212480.

The previous prime is 117660503. The next prime is 117660523. The reversal of 117660505 is 505066711.

It is not a de Polignac number, because 117660505 - 2¹ = 117660503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117660503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21775 + ... + 26635.

It is an arithmetic number, because the mean of its divisors is an integer number (9101664).

Almost surely, 2^117660505 is an apocalyptic number.

It is an amenable number.

117660505 is a deficient number, since it is larger than the sum of its proper divisors (27966119).

117660505 is a wasteful number, since it uses less digits than its factorization.

117660505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 117660505 is about 10847.1427113319. The cubic root of 117660505 is about 490.0159719908.

The spelling of 117660505 in words is "one hundred seventeen million, six hundred sixty thousand, five hundred five".