225666020256199 has 2 divisors, whose sum is σ = 225666020256200. Its totient is φ = 225666020256198.

The previous prime is 225666020256197. The next prime is 225666020256293. The reversal of 225666020256199 is 991652020666522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225666020256199 - 2¹ = 225666020256197 is a prime.

Together with 225666020256197, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225666020256197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112833010128099 + 112833010128100.

It is an arithmetic number, because the mean of its divisors is an integer number (112833010128100).

Almost surely, 2^{225666020256199} is an apocalyptic number.

225666020256199 is a deficient number, since it is larger than the sum of its proper divisors (1).

225666020256199 is an equidigital number, since it uses as much as digits as its factorization.

225666020256199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41990400, while the sum is 61.

The spelling of 225666020256199 in words is "two hundred twenty-five trillion, six hundred sixty-six billion, twenty million, two hundred fifty-six thousand, one hundred ninety-nine".