162320391212004 has 81 divisors (see below), whose sum is σ = 410893684685211. Its totient is φ = 54029920881600.

The previous prime is 162320391211981. The next prime is 162320391212101. The reversal of 162320391212004 is 400212193023261.

The square root of 162320391212004 is 12740502.

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

162320391212004 is a `hidden beast` number, since 1 + 6 + 2 + 320 + 3 + 9 + 121 + 200 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 124334765302500 + 37985625909504 = 11150550^2 + 6163248^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 162320391212004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 85386843454 + ... + 85386845354.

Almost surely, 2^{162320391212004} is an apocalyptic number.

162320391212004 is the 12740502-nd square number.

It is an amenable number.

162320391212004 is an abundant number, since it is smaller than the sum of its proper divisors (248573293473207).

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

162320391212004 is an frugal number, since it uses more digits than its factorization.

162320391212004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6046 (or 3023 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

162320391212004 divided by its sum of digits (36) gives a square (4508899755889 = 2123417²).

The spelling of 162320391212004 in words is "one hundred sixty-two trillion, three hundred twenty billion, three hundred ninety-one million, two hundred twelve thousand, four".