117256660 has 12 divisors (see below), whose sum is σ = 246239028. Its totient is φ = 46902656.

The previous prime is 117256649. The next prime is 117256669. The reversal of 117256660 is 66652711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25441936 + 91814724 = 5044^2 + 9582^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117256669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2931397 + ... + 2931436.

It is an arithmetic number, because the mean of its divisors is an integer number (20519919).

Almost surely, 2^117256660 is an apocalyptic number.

117256660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117256660 is an abundant number, since it is smaller than the sum of its proper divisors (128982368).

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

117256660 is a wasteful number, since it uses less digits than its factorization.

117256660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5862842 (or 5862840 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 117256660 is about 10828.5114397132. The cubic root of 117256660 is about 489.4547036797.

The spelling of 117256660 in words is "one hundred seventeen million, two hundred fifty-six thousand, six hundred sixty".