225301165644163 has 16 divisors (see below), whose sum is σ = 258120009448960. Its totient is φ = 192640575070656.

The previous prime is 225301165644041. The next prime is 225301165644223. The reversal of 225301165644163 is 361446561103522.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 225301165644163 - 2²¹ = 225301163547011 is a prime.

It is a super-2 number, since 2×225301165644163² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225301165644263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234811156 + ... + 235768702.

It is an arithmetic number, because the mean of its divisors is an integer number (16132500590560).

Almost surely, 2^{225301165644163} is an apocalyptic number.

225301165644163 is a deficient number, since it is larger than the sum of its proper divisors (32818843804797).

225301165644163 is an equidigital number, since it uses as much as digits as its factorization.

225301165644163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040146.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 225301165644163 in words is "two hundred twenty-five trillion, three hundred one billion, one hundred sixty-five million, six hundred forty-four thousand, one hundred sixty-three".