158989984 has 96 divisors (see below), whose sum is σ = 352066176. Its totient is φ = 70287360.

The previous prime is 158989951. The next prime is 158989997. The reversal of 158989984 is 489989851.

158989984 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (7464960) is a multiple of the sum of its prime divisors (270).

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, 1213599 + ... + 1213729.

It is an arithmetic number, because the mean of its divisors is an integer number (3667356).

Almost surely, 2^158989984 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 158989984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176033088).

158989984 is an abundant number, since it is smaller than the sum of its proper divisors (193076192).

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

158989984 is a wasteful number, since it uses less digits than its factorization.

158989984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 270 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 61.

The square root of 158989984 is about 12609.1230464295. The cubic root of 158989984 is about 541.7387756414.

The spelling of 158989984 in words is "one hundred fifty-eight million, nine hundred eighty-nine thousand, nine hundred eighty-four".