225730646647 has 16 divisors (see below), whose sum is σ = 249820627968. Its totient is φ = 202239910080.

The previous prime is 225730646639. The next prime is 225730646651. The reversal of 225730646647 is 746646037522.

It is a happy number.

225730646647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 225730646647 - 2³ = 225730646639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225730646594 and 225730646603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225730646147) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 920698 + ... + 1139800.

It is an arithmetic number, because the mean of its divisors is an integer number (15613789248).

Almost surely, 2^225730646647 is an apocalyptic number.

225730646647 is a deficient number, since it is larger than the sum of its proper divisors (24089981321).

225730646647 is a wasteful number, since it uses less digits than its factorization.

225730646647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220470.

The product of its (nonzero) digits is 10160640, while the sum is 52.

The spelling of 225730646647 in words is "two hundred twenty-five billion, seven hundred thirty million, six hundred forty-six thousand, six hundred forty-seven".