225364611664 has 20 divisors (see below), whose sum is σ = 441145422004. Its totient is φ = 111520631808.

The previous prime is 225364611649. The next prime is 225364611701. The reversal of 225364611664 is 466116463522.

It can be written as a sum of positive squares in 2 ways, for example, as 183629390400 + 41735221264 = 428520^2 + 204292^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72603027 + ... + 72606130.

Almost surely, 2^225364611664 is an apocalyptic number.

It is an amenable number.

225364611664 is a deficient number, since it is larger than the sum of its proper divisors (215780810340).

225364611664 is a wasteful number, since it uses less digits than its factorization.

225364611664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145209262 (or 145209256 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The spelling of 225364611664 in words is "two hundred twenty-five billion, three hundred sixty-four million, six hundred eleven thousand, six hundred sixty-four".