158799918 has 16 divisors (see below), whose sum is σ = 327845376. Its totient is φ = 51225720.

The previous prime is 158799899. The next prime is 158799923. The reversal of 158799918 is 819997851.

158799918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426696 + ... + 427067.

It is an arithmetic number, because the mean of its divisors is an integer number (20490336).

Almost surely, 2^158799918 is an apocalyptic number.

158799918 is an abundant number, since it is smaller than the sum of its proper divisors (169045458).

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

158799918 is a wasteful number, since it uses less digits than its factorization.

158799918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853799.

The product of its digits is 1632960, while the sum is 57.

The square root of 158799918 is about 12601.5839480599. The cubic root of 158799918 is about 541.5228140707.

The spelling of 158799918 in words is "one hundred fifty-eight million, seven hundred ninety-nine thousand, nine hundred eighteen".