225016368197 has 2 divisors, whose sum is σ = 225016368198. Its totient is φ = 225016368196.

The previous prime is 225016368163. The next prime is 225016368217. The reversal of 225016368197 is 791863610522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224177628676 + 838739521 = 473474^2 + 28961^2 .

It is a cyclic number.

It is not a de Polignac number, because 225016368197 - 2¹⁸ = 225016106053 is a prime.

It is a super-3 number, since 3×225016368197³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225016368097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112508184098 + 112508184099.

It is an arithmetic number, because the mean of its divisors is an integer number (112508184099).

Almost surely, 2^225016368197 is an apocalyptic number.

It is an amenable number.

225016368197 is a deficient number, since it is larger than the sum of its proper divisors (1).

225016368197 is an equidigital number, since it uses as much as digits as its factorization.

225016368197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 225016368197 in words is "two hundred twenty-five billion, sixteen million, three hundred sixty-eight thousand, one hundred ninety-seven".