2066561207 has 2 divisors, whose sum is σ = 2066561208. Its totient is φ = 2066561206.

The previous prime is 2066561197. The next prime is 2066561249. The reversal of 2066561207 is 7021656602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2066561207 - 2¹⁸ = 2066299063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2066561297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033280603 + 1033280604.

It is an arithmetic number, because the mean of its divisors is an integer number (1033280604).

Almost surely, 2^2066561207 is an apocalyptic number.

2066561207 is a deficient number, since it is larger than the sum of its proper divisors (1).

2066561207 is an equidigital number, since it uses as much as digits as its factorization.

2066561207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 2066561207 is about 45459.4457401319. The cubic root of 2066561207 is about 1273.7457781820.

The spelling of 2066561207 in words is "two billion, sixty-six million, five hundred sixty-one thousand, two hundred seven".