118163385 has 24 divisors (see below), whose sum is σ = 210355080. Its totient is φ = 61316352.

The previous prime is 118163377. The next prime is 118163399. The reversal of 118163385 is 583361811.

118163385 is a `hidden beast` number, since 1 + 18 + 1 + 633 + 8 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10169721 + 107993664 = 3189^2 + 10392^2 .

It is not a de Polignac number, because 118163385 - 2³ = 118163377 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33820 + ... + 37149.

It is an arithmetic number, because the mean of its divisors is an integer number (8764795).

Almost surely, 2^118163385 is an apocalyptic number.

118163385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118163385 is a deficient number, since it is larger than the sum of its proper divisors (92191695).

118163385 is a wasteful number, since it uses less digits than its factorization.

118163385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71017 (or 71014 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 118163385 is about 10870.2982939752. The cubic root of 118163385 is about 490.7130878119.

The spelling of 118163385 in words is "one hundred eighteen million, one hundred sixty-three thousand, three hundred eighty-five".