158242644392 has 128 divisors (see below), whose sum is σ = 357632409600. Its totient is φ = 64220083200.

The previous prime is 158242644377. The next prime is 158242644397. The reversal of 158242644392 is 293446242851.

It is a self number, because there is not a number n which added to its sum of digits gives 158242644392.

It is not an unprimeable number, because it can be changed into a prime (158242644397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15492167 + ... + 15502377.

It is an arithmetic number, because the mean of its divisors is an integer number (2794003200).

Almost surely, 2^158242644392 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 158242644392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178816204800).

158242644392 is an abundant number, since it is smaller than the sum of its proper divisors (199389765208).

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

158242644392 is a wasteful number, since it uses less digits than its factorization.

158242644392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10447 (or 10443 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 50.

The spelling of 158242644392 in words is "one hundred fifty-eight billion, two hundred forty-two million, six hundred forty-four thousand, three hundred ninety-two".