6664234349 has 2 divisors, whose sum is σ = 6664234350. Its totient is φ = 6664234348.

The previous prime is 6664234333. The next prime is 6664234417. The reversal of 6664234349 is 9434324666.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5039580100 + 1624654249 = 70990^2 + 40307^2 .

It is a cyclic number.

It is not a de Polignac number, because 6664234349 - 2⁴ = 6664234333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6664234309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332117174 + 3332117175.

It is an arithmetic number, because the mean of its divisors is an integer number (3332117175).

Almost surely, 2^6664234349 is an apocalyptic number.

It is an amenable number.

6664234349 is a deficient number, since it is larger than the sum of its proper divisors (1).

6664234349 is an equidigital number, since it uses as much as digits as its factorization.

6664234349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 47.

The square root of 6664234349 is about 81634.7618909984. The cubic root of 6664234349 is about 1881.8431400640.

The spelling of 6664234349 in words is "six billion, six hundred sixty-four million, two hundred thirty-four thousand, three hundred forty-nine".