117681164 has 24 divisors (see below), whose sum is σ = 215108880. Its totient is φ = 56275776.

The previous prime is 117681143. The next prime is 117681167. The reversal of 117681164 is 461186711.

It is not an unprimeable number, because it can be changed into a prime (117681167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1994 + ... + 15470.

It is an arithmetic number, because the mean of its divisors is an integer number (8962870).

Almost surely, 2^117681164 is an apocalyptic number.

It is an amenable number.

117681164 is a deficient number, since it is larger than the sum of its proper divisors (97427716).

117681164 is a wasteful number, since it uses less digits than its factorization.

117681164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13577 (or 13575 counting only the distinct ones).

The product of its digits is 8064, while the sum is 35.

The square root of 117681164 is about 10848.0949479621. The cubic root of 117681164 is about 490.0446495479.

The spelling of 117681164 in words is "one hundred seventeen million, six hundred eighty-one thousand, one hundred sixty-four".