225530645046165 has 12 divisors (see below), whose sum is σ = 390919784746764. Its totient is φ = 120283010691264.

The previous prime is 225530645046127. The next prime is 225530645046253. The reversal of 225530645046165 is 561640546035522.

225530645046165 is a `hidden beast` number, since 2 + 2 + 5 + 530 + 6 + 4 + 5 + 0 + 46 + 1 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 167842959198084 + 57687685848081 = 12955422^2 + 7595241^2 .

It is not a de Polignac number, because 225530645046165 - 2¹⁶ = 225530644980629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2505896056024 + ... + 2505896056113.

It is an arithmetic number, because the mean of its divisors is an integer number (32576648728897).

Almost surely, 2^{225530645046165} is an apocalyptic number.

It is an amenable number.

225530645046165 is a deficient number, since it is larger than the sum of its proper divisors (165389139700599).

225530645046165 is a wasteful number, since it uses less digits than its factorization.

225530645046165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011792112148 (or 5011792112145 counting only the distinct ones).

The product of its (nonzero) digits is 25920000, while the sum is 54.

The spelling of 225530645046165 in words is "two hundred twenty-five trillion, five hundred thirty billion, six hundred forty-five million, forty-six thousand, one hundred sixty-five".