158131322496 has 512 divisors, whose sum is σ = 580861440000. Its totient is φ = 41323032576.

The previous prime is 158131322473. The next prime is 158131322497. The reversal of 158131322496 is 694223131851.

158131322496 is a `hidden beast` number, since 1 + 5 + 8 + 131 + 3 + 22 + 496 = 666.

It is not an unprimeable number, because it can be changed into a prime (158131322497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13323861 + ... + 13335723.

It is an arithmetic number, because the mean of its divisors is an integer number (1134495000).

Almost surely, 2^158131322496 is an apocalyptic number.

158131322496 is a gapful number since it is divisible by the number (16) 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 158131322496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290430720000).

158131322496 is an abundant number, since it is smaller than the sum of its proper divisors (422730117504).

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

158131322496 is a wasteful number, since it uses less digits than its factorization.

158131322496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11941 (or 11923 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The spelling of 158131322496 in words is "one hundred fifty-eight billion, one hundred thirty-one million, three hundred twenty-two thousand, four hundred ninety-six".