158189660 has 12 divisors (see below), whose sum is σ = 332198328. Its totient is φ = 63275856.

The previous prime is 158189659. The next prime is 158189701. The reversal of 158189660 is 66981851.

158189660 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 3 ways as a sum of consecutive naturals, for example, 3954722 + ... + 3954761.

It is an arithmetic number, because the mean of its divisors is an integer number (27683194).

Almost surely, 2^158189660 is an apocalyptic number.

158189660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158189660 is an abundant number, since it is smaller than the sum of its proper divisors (174008668).

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

158189660 is a wasteful number, since it uses less digits than its factorization.

158189660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7909492 (or 7909490 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 158189660 is about 12577.3470970630. The cubic root of 158189660 is about 540.8282443190.

The spelling of 158189660 in words is "one hundred fifty-eight million, one hundred eighty-nine thousand, six hundred sixty".