225165884401 has 2 divisors, whose sum is σ = 225165884402. Its totient is φ = 225165884400.

The previous prime is 225165884381. The next prime is 225165884429. The reversal of 225165884401 is 104488561522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174119260176 + 51046624225 = 417276^2 + 225935^2 .

It is a cyclic number.

It is not a de Polignac number, because 225165884401 - 2¹³ = 225165876209 is a prime.

It is not a weakly prime, because it can be changed into another prime (225165884101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112582942200 + 112582942201.

It is an arithmetic number, because the mean of its divisors is an integer number (112582942201).

Almost surely, 2^225165884401 is an apocalyptic number.

It is an amenable number.

225165884401 is a deficient number, since it is larger than the sum of its proper divisors (1).

225165884401 is an equidigital number, since it uses as much as digits as its factorization.

225165884401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 614400, while the sum is 46.

The spelling of 225165884401 in words is "two hundred twenty-five billion, one hundred sixty-five million, eight hundred eighty-four thousand, four hundred one".