225656162672 has 20 divisors (see below), whose sum is σ = 437222852256. Its totient is φ = 112824458880.

The previous prime is 225656162671. The next prime is 225656162687. The reversal of 225656162672 is 276261656522.

It is a self number, because there is not a number n which added to its sum of digits gives 225656162672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225656162671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328772 + ... + 747932.

Almost surely, 2^225656162672 is an apocalyptic number.

It is an amenable number.

225656162672 is a deficient number, since it is larger than the sum of its proper divisors (211566689584).

225656162672 is a wasteful number, since it uses less digits than its factorization.

225656162672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452816 (or 452810 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 50.

The spelling of 225656162672 in words is "two hundred twenty-five billion, six hundred fifty-six million, one hundred sixty-two thousand, six hundred seventy-two".