6664345033 has 2 divisors, whose sum is σ = 6664345034. Its totient is φ = 6664345032.

The previous prime is 6664345031. The next prime is 6664345043. The reversal of 6664345033 is 3305434666.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3646710544 + 3017634489 = 60388^2 + 54933^2 .

It is a cyclic number.

It is not a de Polignac number, because 6664345033 - 2¹ = 6664345031 is a prime.

Together with 6664345031, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6664345031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332172516 + 3332172517.

It is an arithmetic number, because the mean of its divisors is an integer number (3332172517).

Almost surely, 2^6664345033 is an apocalyptic number.

It is an amenable number.

6664345033 is a deficient number, since it is larger than the sum of its proper divisors (1).

6664345033 is an equidigital number, since it uses as much as digits as its factorization.

6664345033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 40.

The square root of 6664345033 is about 81635.4398101707. The cubic root of 6664345033 is about 1881.8535583037.

Adding to 6664345033 its reverse (3305434666), we get a palindrome (9969779699).

The spelling of 6664345033 in words is "six billion, six hundred sixty-four million, three hundred forty-five thousand, thirty-three".