225203305644664 has 8 divisors (see below), whose sum is σ = 422256198083760. Its totient is φ = 112601652822328.

The previous prime is 225203305644623. The next prime is 225203305644671. The reversal of 225203305644664 is 466446503302522.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14075206602784 + ... + 14075206602799.

It is an arithmetic number, because the mean of its divisors is an integer number (52782024760470).

Almost surely, 2^{225203305644664} is an apocalyptic number.

It is an amenable number.

225203305644664 is a deficient number, since it is larger than the sum of its proper divisors (197052892439096).

225203305644664 is a wasteful number, since it uses less digits than its factorization.

225203305644664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28150413205589 (or 28150413205585 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 52.

The spelling of 225203305644664 in words is "two hundred twenty-five trillion, two hundred three billion, three hundred five million, six hundred forty-four thousand, six hundred sixty-four".