4322065661 has 2 divisors, whose sum is σ = 4322065662. Its totient is φ = 4322065660.

The previous prime is 4322065637. The next prime is 4322065687. The reversal of 4322065661 is 1665602234.

It is a happy number.

4322065661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3994998436 + 327067225 = 63206^2 + 18085^2 .

It is a cyclic number.

It is not a de Polignac number, because 4322065661 - 2⁶ = 4322065597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4322065361) 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, 2161032830 + 2161032831.

It is an arithmetic number, because the mean of its divisors is an integer number (2161032831).

Almost surely, 2^4322065661 is an apocalyptic number.

It is an amenable number.

4322065661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4322065661 is an equidigital number, since it uses as much as digits as its factorization.

4322065661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 4322065661 is about 65742.4190382435. The cubic root of 4322065661 is about 1628.9101150102.

Adding to 4322065661 its reverse (1665602234), we get a palindrome (5987667895).

The spelling of 4322065661 in words is "four billion, three hundred twenty-two million, sixty-five thousand, six hundred sixty-one".