663228651222019 has 2 divisors, whose sum is σ = 663228651222020. Its totient is φ = 663228651222018.

The previous prime is 663228651222013. The next prime is 663228651222041. The reversal of 663228651222019 is 910222156822366.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 663228651222019 - 2¹³ = 663228651213827 is a prime.

It is a super-2 number, since 2×663228651222019² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (663228651222013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331614325611009 + 331614325611010.

It is an arithmetic number, because the mean of its divisors is an integer number (331614325611010).

Almost surely, 2^{663228651222019} is an apocalyptic number.

663228651222019 is a deficient number, since it is larger than the sum of its proper divisors (1).

663228651222019 is an equidigital number, since it uses as much as digits as its factorization.

663228651222019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 663228651222019 in words is "six hundred sixty-three trillion, two hundred twenty-eight billion, six hundred fifty-one million, two hundred twenty-two thousand, nineteen".