117808080 has 160 divisors (see below), whose sum is σ = 400391040. Its totient is φ = 28477440.

The previous prime is 117808069. The next prime is 117808157. The reversal of 117808080 is 80808711.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190011 + ... + 190629.

It is an arithmetic number, because the mean of its divisors is an integer number (2502444).

Almost surely, 2^117808080 is an apocalyptic number.

117808080 is a gapful number since it is divisible by the number (10) 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 117808080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200195520).

117808080 is an abundant number, since it is smaller than the sum of its proper divisors (282582960).

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

117808080 is a wasteful number, since it uses less digits than its factorization.

117808080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 33.

The square root of 117808080 is about 10853.9430623161. The cubic root of 117808080 is about 490.2207529549.

The spelling of 117808080 in words is "one hundred seventeen million, eight hundred eight thousand, eighty".