117998664 has 96 divisors (see below), whose sum is σ = 361288800. Its totient is φ = 31933440.

The previous prime is 117998653. The next prime is 117998669. The reversal of 117998664 is 466899711.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (117998669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19704 + ... + 24984.

It is an arithmetic number, because the mean of its divisors is an integer number (3763425).

Almost surely, 2^117998664 is an apocalyptic number.

117998664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117998664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180644400).

117998664 is an abundant number, since it is smaller than the sum of its proper divisors (243290136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117998664 is a wasteful number, since it uses less digits than its factorization.

117998664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323 (or 5312 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 117998664 is about 10862.7189966417. The cubic root of 117998664 is about 490.4849620426.

The spelling of 117998664 in words is "one hundred seventeen million, nine hundred ninety-eight thousand, six hundred sixty-four".