158931456667204 has 81 divisors (see below), whose sum is σ = 302115612377061. Its totient is φ = 73123485776640.

The previous prime is 158931456667171. The next prime is 158931456667231. The reversal of 158931456667204 is 402766654139851.

The square root of 158931456667204 is 12606802.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 51522277121604 + 107409179545600 = 7177902^2 + 10363840^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158931456667204.

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 26 ways as a sum of consecutive naturals, for example, 149794020834 + ... + 149794021894.

It is a 1-persistent number, because it is pandigital, but 2⋅158931456667204 = 317862913334408 is not.

Almost surely, 2^{158931456667204} is an apocalyptic number.

158931456667204 is the 12606802-nd square number.

It is an amenable number.

158931456667204 is a deficient number, since it is larger than the sum of its proper divisors (143184155709857).

158931456667204 is an frugal number, since it uses more digits than its factorization.

158931456667204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3066 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 261273600, while the sum is 67.

The spelling of 158931456667204 in words is "one hundred fifty-eight trillion, nine hundred thirty-one billion, four hundred fifty-six million, six hundred sixty-seven thousand, two hundred four".