117556720 has 40 divisors (see below), whose sum is σ = 282749760. Its totient is φ = 45400320.

The previous prime is 117556697. The next prime is 117556723. The reversal of 117556720 is 27655711.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117556723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23016 + ... + 27655.

It is an arithmetic number, because the mean of its divisors is an integer number (7068744).

Almost surely, 2^117556720 is an apocalyptic number.

117556720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117556720 is an abundant number, since it is smaller than the sum of its proper divisors (165193040).

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

117556720 is a wasteful number, since it uses less digits than its factorization.

117556720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50713 (or 50707 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 34.

The square root of 117556720 is about 10842.3576771844. The cubic root of 117556720 is about 489.8718532033.

The spelling of 117556720 in words is "one hundred seventeen million, five hundred fifty-six thousand, seven hundred twenty".