158649568 has 144 divisors (see below), whose sum is σ = 408385152. Its totient is φ = 58924800.

The previous prime is 158649529. The next prime is 158649629. The reversal of 158649568 is 865946851.

158649568 is digitally balanced in base 3, 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2367871 + ... + 2367937.

It is an arithmetic number, because the mean of its divisors is an integer number (2836008).

Almost surely, 2^158649568 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 158649568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204192576).

158649568 is an abundant number, since it is smaller than the sum of its proper divisors (249735584).

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

158649568 is a wasteful number, since it uses less digits than its factorization.

158649568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 118 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 52.

The square root of 158649568 is about 12595.6170154542. The cubic root of 158649568 is about 541.3518575093.

The spelling of 158649568 in words is "one hundred fifty-eight million, six hundred forty-nine thousand, five hundred sixty-eight".