158689104990 has 32 divisors (see below), whose sum is σ = 410150303136. Its totient is φ = 39061933440.

The previous prime is 158689104979. The next prime is 158689105009. The reversal of 158689104990 is 99401986851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203447181 + ... + 203447960.

It is an arithmetic number, because the mean of its divisors is an integer number (12817196973).

Almost surely, 2^158689104990 is an apocalyptic number.

158689104990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158689104990 is an abundant number, since it is smaller than the sum of its proper divisors (251461198146).

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

158689104990 is a wasteful number, since it uses less digits than its factorization.

158689104990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406895164.

The product of its (nonzero) digits is 5598720, while the sum is 60.

The spelling of 158689104990 in words is "one hundred fifty-eight billion, six hundred eighty-nine million, one hundred four thousand, nine hundred ninety".