158772768 has 192 divisors, whose sum is σ = 531836928. Its totient is φ = 40273920.

The previous prime is 158772763. The next prime is 158772833. The reversal of 158772768 is 867277851.

158772768 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 158772768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158772763) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 347196 + ... + 347652.

It is an arithmetic number, because the mean of its divisors is an integer number (2769984).

Almost surely, 2^158772768 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 158772768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265918464).

158772768 is an abundant number, since it is smaller than the sum of its proper divisors (373064160).

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

158772768 is a wasteful number, since it uses less digits than its factorization.

158772768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 527 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 51.

The square root of 158772768 is about 12600.5066564801. The cubic root of 158772768 is about 541.4919509516.

The spelling of 158772768 in words is "one hundred fifty-eight million, seven hundred seventy-two thousand, seven hundred sixty-eight".