158172912000 has 960 divisors, whose sum is σ = 611799851520. Its totient is φ = 40497408000.

The previous prime is 158172911999. The next prime is 158172912043. The reversal of 158172912000 is 219271851.

It is a happy number.

158172912000 is a `hidden beast` number, since 1 + 581 + 72 + 9 + 1 + 2 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

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

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1245455937 + ... + 1245456063.

It is an arithmetic number, because the mean of its divisors is an integer number (637291512).

Almost surely, 2^158172912000 is an apocalyptic number.

158172912000 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 158172912000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305899925760).

158172912000 is an abundant number, since it is smaller than the sum of its proper divisors (453626939520).

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

158172912000 is an equidigital number, since it uses as much as digits as its factorization.

158172912000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The spelling of 158172912000 in words is "one hundred fifty-eight billion, one hundred seventy-two million, nine hundred twelve thousand".