118137664 has 14 divisors (see below), whose sum is σ = 234429554. Its totient is φ = 59068800.

The previous prime is 118137661. The next prime is 118137731. The reversal of 118137664 is 466731811.

It can be written as a sum of positive squares in only one way, i.e., 100160064 + 17977600 = 10008^2 + 4240^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118137661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 922887 + ... + 923014.

Almost surely, 2^118137664 is an apocalyptic number.

It is an amenable number.

118137664 is a deficient number, since it is larger than the sum of its proper divisors (116291890).

118137664 is an equidigital number, since it uses as much as digits as its factorization.

118137664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845913 (or 1845903 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 118137664 is about 10869.1151433776. The cubic root of 118137664 is about 490.6774802017.

The spelling of 118137664 in words is "one hundred eighteen million, one hundred thirty-seven thousand, six hundred sixty-four".