117818668 has 36 divisors (see below), whose sum is σ = 227834320. Its totient is φ = 53269920.

The previous prime is 117818611. The next prime is 117818671. The reversal of 117818668 is 866818711.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110305 + ... + 111367.

Almost surely, 2^117818668 is an apocalyptic number.

It is an amenable number.

117818668 is a deficient number, since it is larger than the sum of its proper divisors (110015652).

117818668 is a wasteful number, since it uses less digits than its factorization.

117818668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318 (or 1305 counting only the distinct ones).

The product of its digits is 129024, while the sum is 46.

The square root of 117818668 is about 10854.4308003690. The cubic root of 117818668 is about 490.2354387100.

It can be divided in two parts, 11781 and 8668, that added together give a square (20449 = 143²).

The spelling of 117818668 in words is "one hundred seventeen million, eight hundred eighteen thousand, six hundred sixty-eight".