158131322208 has 72 divisors (see below), whose sum is σ = 455846089608. Its totient is φ = 51988372992.

The previous prime is 158131322117. The next prime is 158131322213. The reversal of 158131322208 is 802223131851.

158131322208 is a `hidden beast` number, since 1 + 581 + 31 + 3 + 22 + 20 + 8 = 666.

158131322208 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3739710 + ... + 3781757.

It is an arithmetic number, because the mean of its divisors is an integer number (6331195689).

Almost surely, 2^158131322208 is an apocalyptic number.

158131322208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

158131322208 is an abundant number, since it is smaller than the sum of its proper divisors (297714767400).

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

158131322208 is a wasteful number, since it uses less digits than its factorization.

158131322208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7521556 (or 7521545 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 158131322208 in words is "one hundred fifty-eight billion, one hundred thirty-one million, three hundred twenty-two thousand, two hundred eight".