118664 has 32 divisors (see below), whose sum is σ = 275520. Its totient is φ = 46656.

The previous prime is 118661. The next prime is 118669. The reversal of 118664 is 466811.

118664 = 35² + 36² + ... + 73².

It is a super-2 number, since 2×118664² = 28162289792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (118661) 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, 647 + ... + 809.

It is an arithmetic number, because the mean of its divisors is an integer number (8610).

2¹¹⁸⁶⁶⁴ is an apocalyptic number.

118664 is a gapful number since it is divisible by the number (14) 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 118664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137760).

118664 is an abundant number, since it is smaller than the sum of its proper divisors (156856).

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

118664 is a wasteful number, since it uses less digits than its factorization.

118664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 185 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 118664 is about 344.4764142870. The cubic root of 118664 is about 49.1405102024.

The spelling of 118664 in words is "one hundred eighteen thousand, six hundred sixty-four".