158699664 has 120 divisors (see below), whose sum is σ = 465700352. Its totient is φ = 50388480.

The previous prime is 158699657. The next prime is 158699669. The reversal of 158699664 is 466996851.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 158699664.

It is not an unprimeable number, because it can be changed into a prime (158699669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325629 + ... + 326115.

Almost surely, 2^158699664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158699664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232850176).

158699664 is an abundant number, since it is smaller than the sum of its proper divisors (307000688).

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

158699664 is a wasteful number, since it uses less digits than its factorization.

158699664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605 (or 596 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 158699664 is about 12597.6054867582. The cubic root of 158699664 is about 541.4088315245.

The spelling of 158699664 in words is "one hundred fifty-eight million, six hundred ninety-nine thousand, six hundred sixty-four".