117660640 has 48 divisors (see below), whose sum is σ = 290068128. Its totient is φ = 45016576.

The previous prime is 117660623. The next prime is 117660671. The reversal of 117660640 is 46066711.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12307 + ... + 19666.

It is an arithmetic number, because the mean of its divisors is an integer number (6043086).

Almost surely, 2^117660640 is an apocalyptic number.

117660640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117660640 is an abundant number, since it is smaller than the sum of its proper divisors (172407488).

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

117660640 is a wasteful number, since it uses less digits than its factorization.

117660640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32011 (or 32003 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 117660640 is about 10847.1489341670. The cubic root of 117660640 is about 490.0161594004.

It can be divided in two parts, 1176 and 60640, that added together give a palindrome (61816).

The spelling of 117660640 in words is "one hundred seventeen million, six hundred sixty thousand, six hundred forty".