4066643044439 has 2 divisors, whose sum is σ = 4066643044440. Its totient is φ = 4066643044438.

The previous prime is 4066643044433. The next prime is 4066643044487. The reversal of 4066643044439 is 9344403466604.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4066643044439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4066643044433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2033321522219 + 2033321522220.

It is an arithmetic number, because the mean of its divisors is an integer number (2033321522220).

Almost surely, 2^{4066643044439} is an apocalyptic number.

4066643044439 is a deficient number, since it is larger than the sum of its proper divisors (1).

4066643044439 is an equidigital number, since it uses as much as digits as its factorization.

4066643044439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17915904, while the sum is 53.

The spelling of 4066643044439 in words is "four trillion, sixty-six billion, six hundred forty-three million, forty-four thousand, four hundred thirty-nine".