115656660 has 360 divisors, whose sum is σ = 444939264. Its totient is φ = 25038720.

The previous prime is 115656659. The next prime is 115656677. The reversal of 115656660 is 66656511.

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 119 ways as a sum of consecutive naturals, for example, 2460757 + ... + 2460803.

Almost surely, 2^115656660 is an apocalyptic number.

115656660 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 115656660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222469632).

115656660 is an abundant number, since it is smaller than the sum of its proper divisors (329282604).

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

115656660 is a wasteful number, since it uses less digits than its factorization.

115656660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 115656660 is about 10754.3786431388. The cubic root of 115656660 is about 487.2182513971.

It can be divided in two parts, 11565 and 6660, that added together give a square (18225 = 135²).

The spelling of 115656660 in words is "one hundred fifteen million, six hundred fifty-six thousand, six hundred sixty".