441656013641 has 2 divisors, whose sum is σ = 441656013642. Its totient is φ = 441656013640.

The previous prime is 441656013607. The next prime is 441656013661. The reversal of 441656013641 is 146310656144.

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., 428463194041 + 13192819600 = 654571^2 + 114860^2 .

It is a cyclic number.

It is not a de Polignac number, because 441656013641 - 2¹⁰ = 441656012617 is a prime.

It is not a weakly prime, because it can be changed into another prime (441656013661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220828006820 + 220828006821.

It is an arithmetic number, because the mean of its divisors is an integer number (220828006821).

Almost surely, 2^441656013641 is an apocalyptic number.

It is an amenable number.

441656013641 is a deficient number, since it is larger than the sum of its proper divisors (1).

441656013641 is an equidigital number, since it uses as much as digits as its factorization.

441656013641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 41.

Adding to 441656013641 its reverse (146310656144), we get a palindrome (587966669785).

The spelling of 441656013641 in words is "four hundred forty-one billion, six hundred fifty-six million, thirteen thousand, six hundred forty-one".