163022945121 has 9 divisors (see below), whose sum is σ = 235479337041. Its totient is φ = 108681155892.

The previous prime is 163022945101. The next prime is 163022945159. The reversal of 163022945121 is 121549220361.

The square root of 163022945121 is 403761.

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

163022945121 is a `hidden beast` number, since 1 + 6 + 30 + 22 + 94 + 512 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 163022945121 - 2³⁵ = 128663206753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163022945101) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1143990 + ... + 1278576.

Almost surely, 2^163022945121 is an apocalyptic number.

163022945121 is the 403761-st square number.

163022945121 is the 201881-st centered octagonal number.

It is an amenable number.

163022945121 is a deficient number, since it is larger than the sum of its proper divisors (72456391920).

163022945121 is an frugal number, since it uses more digits than its factorization.

163022945121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269180 (or 134590 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

Multiplying 163022945121 by its sum of digits (36), we get a square (5868826024356 = 2422566²).

The spelling of 163022945121 in words is "one hundred sixty-three billion, twenty-two million, nine hundred forty-five thousand, one hundred twenty-one".