117751680 has 96 divisors (see below), whose sum is σ = 406631160. Its totient is φ = 31398912.

The previous prime is 117751661. The next prime is 117751693. The reversal of 117751680 is 86157711.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 4462 + ... + 15981.

Almost surely, 2^117751680 is an apocalyptic number.

117751680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117751680 is an abundant number, since it is smaller than the sum of its proper divisors (288879480).

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

117751680 is a wasteful number, since it uses less digits than its factorization.

117751680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20468 (or 20453 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 36.

The square root of 117751680 is about 10851.3446171431. The cubic root of 117751680 is about 490.1425102632.

The spelling of 117751680 in words is "one hundred seventeen million, seven hundred fifty-one thousand, six hundred eighty".