158618728806 has 16 divisors (see below), whose sum is σ = 317295445104. Its totient is φ = 52863245024.

The previous prime is 158618728799. The next prime is 158618728843. The reversal of 158618728806 is 608827816851.

It is a super-2 number, since 2×158618728806² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 158618728806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380545 + ... + 2446268.

It is an arithmetic number, because the mean of its divisors is an integer number (19830965319).

Almost surely, 2^158618728806 is an apocalyptic number.

158618728806 is an abundant number, since it is smaller than the sum of its proper divisors (158676716298).

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

158618728806 is a wasteful number, since it uses less digits than its factorization.

158618728806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832295.

The product of its (nonzero) digits is 10321920, while the sum is 60.

The spelling of 158618728806 in words is "one hundred fifty-eight billion, six hundred eighteen million, seven hundred twenty-eight thousand, eight hundred six".