118518618 has 32 divisors (see below), whose sum is σ = 255608640. Its totient is φ = 36512640.

The previous prime is 118518607. The next prime is 118518649. The reversal of 118518618 is 816815811.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8005 + ... + 17352.

It is an arithmetic number, because the mean of its divisors is an integer number (7987770).

Almost surely, 2^118518618 is an apocalyptic number.

118518618 is an abundant number, since it is smaller than the sum of its proper divisors (137090022).

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

118518618 is a wasteful number, since it uses less digits than its factorization.

118518618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25422.

The product of its digits is 15360, while the sum is 39.

The square root of 118518618 is about 10886.6256480142. The cubic root of 118518618 is about 491.2043372535.

The spelling of 118518618 in words is "one hundred eighteen million, five hundred eighteen thousand, six hundred eighteen".