2066307689 has 2 divisors, whose sum is σ = 2066307690. Its totient is φ = 2066307688.

The previous prime is 2066307667. The next prime is 2066307743. The reversal of 2066307689 is 9867036602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2025450025 + 40857664 = 45005^2 + 6392^2 .

It is a cyclic number.

It is not a de Polignac number, because 2066307689 - 2⁸ = 2066307433 is a prime.

It is not a weakly prime, because it can be changed into another prime (2066307889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033153844 + 1033153845.

It is an arithmetic number, because the mean of its divisors is an integer number (1033153845).

Almost surely, 2^2066307689 is an apocalyptic number.

It is an amenable number.

2066307689 is a deficient number, since it is larger than the sum of its proper divisors (1).

2066307689 is an equidigital number, since it uses as much as digits as its factorization.

2066307689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 2066307689 is about 45456.6572572159. The cubic root of 2066307689 is about 1273.6936899291.

The spelling of 2066307689 in words is "two billion, sixty-six million, three hundred seven thousand, six hundred eighty-nine".