158889400900 has 18 divisors (see below), whose sum is σ = 344790000170. Its totient is φ = 63555760320.

The previous prime is 158889400889. The next prime is 158889400903. The reversal of 158889400900 is 9004988851.

It can be written as a sum of positive squares in 3 ways, for example, as 5739274564 + 153150126336 = 75758^2 + 391344^2 .

It is not an unprimeable number, because it can be changed into a prime (158889400903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 794446905 + ... + 794447104.

Almost surely, 2^158889400900 is an apocalyptic number.

158889400900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158889400900 is an abundant number, since it is smaller than the sum of its proper divisors (185900599270).

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

158889400900 is a wasteful number, since it uses less digits than its factorization.

158889400900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588894023 (or 1588894016 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 52.

The spelling of 158889400900 in words is "one hundred fifty-eight billion, eight hundred eighty-nine million, four hundred thousand, nine hundred".