225617575161 has 64 divisors (see below), whose sum is σ = 346961664000. Its totient is φ = 128973358080.

The previous prime is 225617575129. The next prime is 225617575181. The reversal of 225617575161 is 161575716522.

It is not a de Polignac number, because 225617575161 - 2⁵ = 225617575129 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 225617575161.

It is not an unprimeable number, because it can be changed into a prime (225617575181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 223604625 + ... + 223605633.

It is an arithmetic number, because the mean of its divisors is an integer number (5421276000).

Almost surely, 2^225617575161 is an apocalyptic number.

It is an amenable number.

225617575161 is a deficient number, since it is larger than the sum of its proper divisors (121344088839).

225617575161 is a wasteful number, since it uses less digits than its factorization.

225617575161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254.

The product of its digits is 882000, while the sum is 48.

The spelling of 225617575161 in words is "two hundred twenty-five billion, six hundred seventeen million, five hundred seventy-five thousand, one hundred sixty-one".