117117664 has 24 divisors (see below), whose sum is σ = 231175728. Its totient is φ = 58406400.

The previous prime is 117117661. The next prime is 117117673. The reversal of 117117664 is 466711711.

It is a happy number.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117117661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8269 + ... + 17395.

It is an arithmetic number, because the mean of its divisors is an integer number (9632322).

Almost surely, 2^117117664 is an apocalyptic number.

It is an amenable number.

117117664 is a deficient number, since it is larger than the sum of its proper divisors (114058064).

117117664 is an equidigital number, since it uses as much as digits as its factorization.

117117664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9538 (or 9530 counting only the distinct ones).

The product of its digits is 7056, while the sum is 34.

The square root of 117117664 is about 10822.0914799312. The cubic root of 117117664 is about 489.2612274043.

The spelling of 117117664 in words is "one hundred seventeen million, one hundred seventeen thousand, six hundred sixty-four".