118784664 has 64 divisors (see below), whose sum is σ = 331056000. Its totient is φ = 39463200.

The previous prime is 118784663. The next prime is 118784683. The reversal of 118784664 is 466487811.

118784664 is a `hidden beast` number, since 1 + 187 + 8 + 466 + 4 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118784663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81139 + ... + 82589.

It is an arithmetic number, because the mean of its divisors is an integer number (5172750).

Almost surely, 2^118784664 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 118784664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165528000).

118784664 is an abundant number, since it is smaller than the sum of its proper divisors (212271336).

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

118784664 is a wasteful number, since it uses less digits than its factorization.

118784664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845 (or 1835 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 118784664 is about 10898.8377361992. The cubic root of 118784664 is about 491.5716080646.

The spelling of 118784664 in words is "one hundred eighteen million, seven hundred eighty-four thousand, six hundred sixty-four".