445766221656227 has 2 divisors, whose sum is σ = 445766221656228. Its totient is φ = 445766221656226.

The previous prime is 445766221656199. The next prime is 445766221656229. The reversal of 445766221656227 is 722656122667544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445766221656227 - 2¹⁶ = 445766221590691 is a prime.

Together with 445766221656229, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (445766221656229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222883110828113 + 222883110828114.

It is an arithmetic number, because the mean of its divisors is an integer number (222883110828114).

Almost surely, 2^{445766221656227} is an apocalyptic number.

445766221656227 is a deficient number, since it is larger than the sum of its proper divisors (1).

445766221656227 is an equidigital number, since it uses as much as digits as its factorization.

445766221656227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 406425600, while the sum is 65.

The spelling of 445766221656227 in words is "four hundred forty-five trillion, seven hundred sixty-six billion, two hundred twenty-one million, six hundred fifty-six thousand, two hundred twenty-seven".