3566661349 has 2 divisors, whose sum is σ = 3566661350. Its totient is φ = 3566661348.

The previous prime is 3566661289. The next prime is 3566661377. The reversal of 3566661349 is 9431666653.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2184160225 + 1382501124 = 46735^2 + 37182^2 .

It is an emirp because it is prime and its reverse (9431666653) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3566661349 - 2⁹ = 3566660837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3566631349) 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, 1783330674 + 1783330675.

It is an arithmetic number, because the mean of its divisors is an integer number (1783330675).

Almost surely, 2^3566661349 is an apocalyptic number.

It is an amenable number.

3566661349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3566661349 is an equidigital number, since it uses as much as digits as its factorization.

3566661349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 49.

The square root of 3566661349 is about 59721.5317033982. The cubic root of 3566661349 is about 1527.8731250531.

The spelling of 3566661349 in words is "three billion, five hundred sixty-six million, six hundred sixty-one thousand, three hundred forty-nine".