1720066065199 has 2 divisors, whose sum is σ = 1720066065200. Its totient is φ = 1720066065198.

The previous prime is 1720066065191. The next prime is 1720066065229. The reversal of 1720066065199 is 9915606600271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1720066065199 - 2³ = 1720066065191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1720066065191) 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, 860033032599 + 860033032600.

It is an arithmetic number, because the mean of its divisors is an integer number (860033032600).

Almost surely, 2^{1720066065199} is an apocalyptic number.

1720066065199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1720066065199 is an equidigital number, since it uses as much as digits as its factorization.

1720066065199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 1720066065199 in words is "one trillion, seven hundred twenty billion, sixty-six million, sixty-five thousand, one hundred ninety-nine".