158629728001 has 4 divisors (see below), whose sum is σ = 158631134292. Its totient is φ = 158628321712.

The previous prime is 158629727989. The next prime is 158629728011. The reversal of 158629728001 is 100827926851.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45682650225 + 112947077776 = 213735^2 + 336076^2 .

It is a cyclic number.

It is not a de Polignac number, because 158629728001 - 2¹⁹ = 158629203713 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158629728011) 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 3 ways as a sum of consecutive naturals, for example, 517630 + ... + 764983.

It is an arithmetic number, because the mean of its divisors is an integer number (39657783573).

Almost surely, 2^158629728001 is an apocalyptic number.

It is an amenable number.

158629728001 is a deficient number, since it is larger than the sum of its proper divisors (1406291).

158629728001 is a wasteful number, since it uses less digits than its factorization.

158629728001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406290.

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 158629728001 in words is "one hundred fifty-eight billion, six hundred twenty-nine million, seven hundred twenty-eight thousand, one".