158268779900 has 432 divisors, whose sum is σ = 465517704960. Its totient is φ = 46072857600.

The previous prime is 158268779899. The next prime is 158268779917. The reversal of 158268779900 is 9977862851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 53305616 + ... + 53308584.

It is an arithmetic number, because the mean of its divisors is an integer number (1077587280).

Almost surely, 2^158268779900 is an apocalyptic number.

158268779900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158268779900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232758852480).

158268779900 is an abundant number, since it is smaller than the sum of its proper divisors (307248925060).

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

158268779900 is a wasteful number, since it uses less digits than its factorization.

158268779900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3074 (or 3060 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 62.

The spelling of 158268779900 in words is "one hundred fifty-eight billion, two hundred sixty-eight million, seven hundred seventy-nine thousand, nine hundred".