4066643044433 has 2 divisors, whose sum is σ = 4066643044434. Its totient is φ = 4066643044432.

The previous prime is 4066643044411. The next prime is 4066643044439. The reversal of 4066643044433 is 3344403466604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3241483369744 + 825159674689 = 1800412^2 + 908383^2 .

It is a cyclic number.

It is not a de Polignac number, because 4066643044433 - 2¹⁶ = 4066642978897 is a prime.

It is not a weakly prime, because it can be changed into another prime (4066643044439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2033321522216 + 2033321522217.

It is an arithmetic number, because the mean of its divisors is an integer number (2033321522217).

Almost surely, 2^{4066643044433} is an apocalyptic number.

It is an amenable number.

4066643044433 is a deficient number, since it is larger than the sum of its proper divisors (1).

4066643044433 is an equidigital number, since it uses as much as digits as its factorization.

4066643044433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5971968, while the sum is 47.

The spelling of 4066643044433 in words is "four trillion, sixty-six billion, six hundred forty-three million, forty-four thousand, four hundred thirty-three".