118168899 has 4 divisors (see below), whose sum is σ = 157558536. Its totient is φ = 78779264.

The previous prime is 118168891. The next prime is 118168901. The reversal of 118168899 is 998861811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998861811 = 3 ⋅332953937.

It is a cyclic number.

It is not a de Polignac number, because 118168899 - 2³ = 118168891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118168891) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19694814 + ... + 19694819.

It is an arithmetic number, because the mean of its divisors is an integer number (39389634).

Almost surely, 2^118168899 is an apocalyptic number.

118168899 is a deficient number, since it is larger than the sum of its proper divisors (39389637).

118168899 is an equidigital number, since it uses as much as digits as its factorization.

118168899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39389636.

The product of its digits is 248832, while the sum is 51.

The square root of 118168899 is about 10870.5519179111. The cubic root of 118168899 is about 490.7207206046.

The spelling of 118168899 in words is "one hundred eighteen million, one hundred sixty-eight thousand, eight hundred ninety-nine".