2066487569 has 2 divisors, whose sum is σ = 2066487570. Its totient is φ = 2066487568.

The previous prime is 2066487541. The next prime is 2066487583. The reversal of 2066487569 is 9657846602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1641303169 + 425184400 = 40513^2 + 20620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2066487569 is a prime.

It is a super-2 number, since 2×2066487569² = 8540741745663059522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2066487569.

It is not a weakly prime, because it can be changed into another prime (2066187569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1033243784 + 1033243785.

It is an arithmetic number, because the mean of its divisors is an integer number (1033243785).

Almost surely, 2^2066487569 is an apocalyptic number.

It is an amenable number.

2066487569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2066487569 is an equidigital number, since it uses as much as digits as its factorization.

2066487569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The square root of 2066487569 is about 45458.6358022323. The cubic root of 2066487569 is about 1273.7306488284.

The spelling of 2066487569 in words is "two billion, sixty-six million, four hundred eighty-seven thousand, five hundred sixty-nine".