225613661107 has 4 divisors (see below), whose sum is σ = 225614614680. Its totient is φ = 225612707536.

The previous prime is 225613661083. The next prime is 225613661153. The reversal of 225613661107 is 701166316522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 225613661107 - 2²³ = 225605272499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225613661107.

It is not an unprimeable number, because it can be changed into a prime (225613661197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176343 + ... + 694495.

It is an arithmetic number, because the mean of its divisors is an integer number (56403653670).

Almost surely, 2^225613661107 is an apocalyptic number.

225613661107 is a deficient number, since it is larger than the sum of its proper divisors (953573).

225613661107 is an equidigital number, since it uses as much as digits as its factorization.

225613661107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953572.

The product of its (nonzero) digits is 90720, while the sum is 40.

Adding to 225613661107 its reverse (701166316522), we get a palindrome (926779977629).

The spelling of 225613661107 in words is "two hundred twenty-five billion, six hundred thirteen million, six hundred sixty-one thousand, one hundred seven".