225155177656 has 16 divisors (see below), whose sum is σ = 422365784400. Its totient is φ = 112524301824.

The previous prime is 225155177641. The next prime is 225155177669. The reversal of 225155177656 is 656771551522.

It is a happy number.

225155177656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6642916 + ... + 6676723.

It is an arithmetic number, because the mean of its divisors is an integer number (26397861525).

Almost surely, 2^225155177656 is an apocalyptic number.

It is an amenable number.

225155177656 is a deficient number, since it is larger than the sum of its proper divisors (197210606744).

225155177656 is a wasteful number, since it uses less digits than its factorization.

225155177656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13321758 (or 13321754 counting only the distinct ones).

The product of its digits is 4410000, while the sum is 52.

The spelling of 225155177656 in words is "two hundred twenty-five billion, one hundred fifty-five million, one hundred seventy-seven thousand, six hundred fifty-six".