3665663489 has 2 divisors, whose sum is σ = 3665663490. Its totient is φ = 3665663488.

The previous prime is 3665663461. The next prime is 3665663557. The reversal of 3665663489 is 9843665663.

3665663489 is digitally balanced in base 2, 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., 2006323264 + 1659340225 = 44792^2 + 40735^2 .

It is a cyclic number.

It is not a de Polignac number, because 3665663489 - 2²⁸ = 3397228033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3665663429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1832831744 + 1832831745.

It is an arithmetic number, because the mean of its divisors is an integer number (1832831745).

Almost surely, 2^3665663489 is an apocalyptic number.

It is an amenable number.

3665663489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3665663489 is an equidigital number, since it uses as much as digits as its factorization.

3665663489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16796160, while the sum is 56.

The square root of 3665663489 is about 60544.7230483384. The cubic root of 3665663489 is about 1541.8810276550.

The spelling of 3665663489 in words is "three billion, six hundred sixty-five million, six hundred sixty-three thousand, four hundred eighty-nine".