117998160 has 80 divisors (see below), whose sum is σ = 418056576. Its totient is φ = 26970624.

The previous prime is 117998159. The next prime is 117998197. The reversal of 117998160 is 61899711.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent 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, 33439 + ... + 36798.

Almost surely, 2^117998160 is an apocalyptic number.

117998160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117998160 is an abundant number, since it is smaller than the sum of its proper divisors (300058416).

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

117998160 is a wasteful number, since it uses less digits than its factorization.

117998160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70260 (or 70254 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 42.

The square root of 117998160 is about 10862.6957980052. The cubic root of 117998160 is about 490.4842637162.

The spelling of 117998160 in words is "one hundred seventeen million, nine hundred ninety-eight thousand, one hundred sixty".