158897664 has 60 divisors (see below), whose sum is σ = 458602716. Its totient is φ = 52964352.

The previous prime is 158897633. The next prime is 158897681. The reversal of 158897664 is 466798851.

It is a self number, because there is not a number n which added to its sum of digits gives 158897664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12634 + ... + 21849.

Almost surely, 2^158897664 is an apocalyptic number.

It is an amenable number.

158897664 is an abundant number, since it is smaller than the sum of its proper divisors (299705052).

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

158897664 is an equidigital number, since it uses as much as digits as its factorization.

158897664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34507 (or 34488 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 158897664 is about 12605.4616734176. The cubic root of 158897664 is about 541.6338989987.

The spelling of 158897664 in words is "one hundred fifty-eight million, eight hundred ninety-seven thousand, six hundred sixty-four".