118661664 has 96 divisors (see below), whose sum is σ = 349102656. Its totient is φ = 34974720.

The previous prime is 118661657. The next prime is 118661671. The reversal of 118661664 is 466166811.

It is an interprime number because it is at equal distance from previous prime (118661657) and next prime (118661671).

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37554 + ... + 40590.

It is an arithmetic number, because the mean of its divisors is an integer number (3636486).

Almost surely, 2^118661664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118661664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174551328).

118661664 is an abundant number, since it is smaller than the sum of its proper divisors (230440992).

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

118661664 is a wasteful number, since it uses less digits than its factorization.

118661664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098 (or 3090 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 118661664 is about 10893.1934711544. The cubic root of 118661664 is about 491.4018774292.

It can be divided in two parts, 11866 and 1664, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 118661664 in words is "one hundred eighteen million, six hundred sixty-one thousand, six hundred sixty-four".