200444660909 has 2 divisors, whose sum is σ = 200444660910. Its totient is φ = 200444660908.

The previous prime is 200444660881. The next prime is 200444660917. The reversal of 200444660909 is 909066444002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182860574884 + 17584086025 = 427622^2 + 132605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200444660909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200444660909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200444660609) 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, 100222330454 + 100222330455.

It is an arithmetic number, because the mean of its divisors is an integer number (100222330455).

Almost surely, 2^200444660909 is an apocalyptic number.

It is an amenable number.

200444660909 is a deficient number, since it is larger than the sum of its proper divisors (1).

200444660909 is an equidigital number, since it uses as much as digits as its factorization.

200444660909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 200444660909 in words is "two hundred billion, four hundred forty-four million, six hundred sixty thousand, nine hundred nine".