117116665 has 16 divisors (see below), whose sum is σ = 149385600. Its totient is φ = 87892992.

The previous prime is 117116653. The next prime is 117116669. The reversal of 117116665 is 566611711.

117116665 is nontrivially palindromic in base 4.

It is a cyclic number.

It is not a de Polignac number, because 117116665 - 2⁵ = 117116633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117116665.

It is not an unprimeable number, because it can be changed into a prime (117116669) 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, 3801 + ... + 15769.

It is an arithmetic number, because the mean of its divisors is an integer number (9336600).

Almost surely, 2^117116665 is an apocalyptic number.

It is an amenable number.

117116665 is a deficient number, since it is larger than the sum of its proper divisors (32268935).

117116665 is a wasteful number, since it uses less digits than its factorization.

117116665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12096.

The product of its digits is 7560, while the sum is 34.

The square root of 117116665 is about 10822.0453242444. The cubic root of 117116665 is about 489.2598362867.

The spelling of 117116665 in words is "one hundred seventeen million, one hundred sixteen thousand, six hundred sixty-five".