117766065 has 16 divisors (see below), whose sum is σ = 191620800. Its totient is φ = 61743552.

The previous prime is 117766037. The next prime is 117766073. The reversal of 117766065 is 560667711.

It is not a de Polignac number, because 117766065 - 2¹⁰ = 117765041 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, 65650 + ... + 67419.

It is an arithmetic number, because the mean of its divisors is an integer number (11976300).

Almost surely, 2^117766065 is an apocalyptic number.

117766065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117766065 is a deficient number, since it is larger than the sum of its proper divisors (73854735).

117766065 is a wasteful number, since it uses less digits than its factorization.

117766065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133136.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 117766065 is about 10852.0074179849. The cubic root of 117766065 is about 490.1624686846.

The spelling of 117766065 in words is "one hundred seventeen million, seven hundred sixty-six thousand, sixty-five".