445501221959 has 2 divisors, whose sum is σ = 445501221960. Its totient is φ = 445501221958.

The previous prime is 445501221917. The next prime is 445501221967. The reversal of 445501221959 is 959122105544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445501221959 - 2⁸ = 445501221703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445501221359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222750610979 + 222750610980.

It is an arithmetic number, because the mean of its divisors is an integer number (222750610980).

Almost surely, 2^445501221959 is an apocalyptic number.

445501221959 is a deficient number, since it is larger than the sum of its proper divisors (1).

445501221959 is an equidigital number, since it uses as much as digits as its factorization.

445501221959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 47.

The spelling of 445501221959 in words is "four hundred forty-five billion, five hundred one million, two hundred twenty-one thousand, nine hundred fifty-nine".