5660817209 has 2 divisors, whose sum is σ = 5660817210. Its totient is φ = 5660817208.

The previous prime is 5660817133. The next prime is 5660817221. The reversal of 5660817209 is 9027180665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4251040000 + 1409777209 = 65200^2 + 37547^2 .

It is a cyclic number.

It is not a de Polignac number, because 5660817209 - 2²⁰ = 5659768633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5660817209.

It is not a weakly prime, because it can be changed into another prime (5660817289) 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, 2830408604 + 2830408605.

It is an arithmetic number, because the mean of its divisors is an integer number (2830408605).

Almost surely, 2^5660817209 is an apocalyptic number.

It is an amenable number.

5660817209 is a deficient number, since it is larger than the sum of its proper divisors (1).

5660817209 is an equidigital number, since it uses as much as digits as its factorization.

5660817209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 5660817209 is about 75238.4024883570. The cubic root of 5660817209 is about 1782.2134238298.

The spelling of 5660817209 in words is "five billion, six hundred sixty million, eight hundred seventeen thousand, two hundred nine".