1006443665099 has 2 divisors, whose sum is σ = 1006443665100. Its totient is φ = 1006443665098.

The previous prime is 1006443665093. The next prime is 1006443665177. The reversal of 1006443665099 is 9905663446001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1006443665099 - 2¹⁶ = 1006443599563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1006443665099.

It is not a weakly prime, because it can be changed into another prime (1006443665093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503221832549 + 503221832550.

It is an arithmetic number, because the mean of its divisors is an integer number (503221832550).

Almost surely, 2^{1006443665099} is an apocalyptic number.

1006443665099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006443665099 is an equidigital number, since it uses as much as digits as its factorization.

1006443665099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 53.

The spelling of 1006443665099 in words is "one trillion, six billion, four hundred forty-three million, six hundred sixty-five thousand, ninety-nine".