117681080 has 64 divisors (see below), whose sum is σ = 292999680. Its totient is φ = 42179200.

The previous prime is 117681049. The next prime is 117681097. The reversal of 117681080 is 80186711.

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, 29357 + ... + 33123.

It is an arithmetic number, because the mean of its divisors is an integer number (4578120).

Almost surely, 2^117681080 is an apocalyptic number.

117681080 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 117681080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146499840).

117681080 is an abundant number, since it is smaller than the sum of its proper divisors (175318600).

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

117681080 is a wasteful number, since it uses less digits than its factorization.

117681080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860 (or 3856 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 117681080 is about 10848.0910763138. The cubic root of 117681080 is about 490.0445329510.

The spelling of 117681080 in words is "one hundred seventeen million, six hundred eighty-one thousand, eighty".