158822209728 has 672 divisors, whose sum is σ = 594356098560. Its totient is φ = 40497408000.

The previous prime is 158822209687. The next prime is 158822209747. The reversal of 158822209728 is 827902228851.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 151114803 + ... + 151115853.

It is an arithmetic number, because the mean of its divisors is an integer number (884458480).

Almost surely, 2^158822209728 is an apocalyptic number.

158822209728 is a gapful number since it is divisible by the number (18) 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 158822209728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297178049280).

158822209728 is an abundant number, since it is smaller than the sum of its proper divisors (435533888832).

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

158822209728 is a wasteful number, since it uses less digits than its factorization.

158822209728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 158822209728 in words is "one hundred fifty-eight billion, eight hundred twenty-two million, two hundred nine thousand, seven hundred twenty-eight".