162129817922 has 18 divisors (see below), whose sum is σ = 245713599129. Its totient is φ = 80233814200.

The previous prime is 162129817903. The next prime is 162129817961. The reversal of 162129817922 is 229718921261.

162129817922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 112534082521 + 49595735401 = 335461^2 + 222701^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=284719.

It is a Duffinian number.

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 8 ways as a sum of consecutive naturals, for example, 57511829 + ... + 57514647.

Almost surely, 2^162129817922 is an apocalyptic number.

162129817922 is a deficient number, since it is larger than the sum of its proper divisors (83583781207).

162129817922 is an frugal number, since it uses more digits than its factorization.

162129817922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842 (or 2922 counting only the distinct ones).

The product of its digits is 435456, while the sum is 50.

Multiplying 162129817922 by its sum of digits (50), we get a square (8106490896100 = 2847190²).

The spelling of 162129817922 in words is "one hundred sixty-two billion, one hundred twenty-nine million, eight hundred seventeen thousand, nine hundred twenty-two".