2044223665109 has 2 divisors, whose sum is σ = 2044223665110. Its totient is φ = 2044223665108.

The previous prime is 2044223665087. The next prime is 2044223665157. The reversal of 2044223665109 is 9015663224402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1831564342609 + 212659322500 = 1353353^2 + 461150^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044223665109 - 2⁸ = 2044223664853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2044223665109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2044229665109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022111832554 + 1022111832555.

It is an arithmetic number, because the mean of its divisors is an integer number (1022111832555).

Almost surely, 2^{2044223665109} is an apocalyptic number.

It is an amenable number.

2044223665109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2044223665109 is an equidigital number, since it uses as much as digits as its factorization.

2044223665109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 2044223665109 in words is "two trillion, forty-four billion, two hundred twenty-three million, six hundred sixty-five thousand, one hundred nine".