441405221655647 has 2 divisors, whose sum is σ = 441405221655648. Its totient is φ = 441405221655646.

The previous prime is 441405221655583. The next prime is 441405221655733. The reversal of 441405221655647 is 746556122504144.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 441405221655647 - 2⁶ = 441405221655583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 441405221655592 and 441405221655601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (441405221655247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220702610827823 + 220702610827824.

It is an arithmetic number, because the mean of its divisors is an integer number (220702610827824).

Almost surely, 2^{441405221655647} is an apocalyptic number.

441405221655647 is a deficient number, since it is larger than the sum of its proper divisors (1).

441405221655647 is an equidigital number, since it uses as much as digits as its factorization.

441405221655647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256000, while the sum is 56.

The spelling of 441405221655647 in words is "four hundred forty-one trillion, four hundred five billion, two hundred twenty-one million, six hundred fifty-five thousand, six hundred forty-seven".