13775482161 has 117 divisors (see below), whose sum is σ = 25127311881. Its totient is φ = 7529456088.

The previous prime is 13775482151. The next prime is 13775482169. The reversal of 13775482161 is 16128457731.

The square root of 13775482161 is 117369.

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

13775482161 is a `hidden beast` number, since 1 + 3 + 7 + 7 + 5 + 482 + 161 = 666.

It is not a de Polignac number, because 13775482161 - 2¹³ = 13775473969 is a prime.

Its product of digits (282240) is a multiple of the sum of its prime factors (96).

It is not an unprimeable number, because it can be changed into a prime (13775482169) by changing a digit.

It is a polite number, since it can be written in 116 ways as a sum of consecutive naturals, for example, 598933996 + ... + 598934018.

Almost surely, 2^13775482161 is an apocalyptic number.

13775482161 is the 117369-th square number.

13775482161 is the 58685-th centered octagonal number.

It is an amenable number.

13775482161 is a deficient number, since it is larger than the sum of its proper divisors (11351829720).

13775482161 is an frugal number, since it uses more digits than its factorization.

13775482161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 33 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The spelling of 13775482161 in words is "thirteen billion, seven hundred seventy-five million, four hundred eighty-two thousand, one hundred sixty-one".