6646066307 has 2 divisors, whose sum is σ = 6646066308. Its totient is φ = 6646066306.

The previous prime is 6646066303. The next prime is 6646066313. The reversal of 6646066307 is 7036606466.

6646066307 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 is a cyclic number.

It is not a de Polignac number, because 6646066307 - 2² = 6646066303 is a prime.

It is not a weakly prime, because it can be changed into another prime (6646066303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3323033153 + 3323033154.

It is an arithmetic number, because the mean of its divisors is an integer number (3323033154).

Almost surely, 2^6646066307 is an apocalyptic number.

6646066307 is a deficient number, since it is larger than the sum of its proper divisors (1).

6646066307 is an equidigital number, since it uses as much as digits as its factorization.

6646066307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 44.

The square root of 6646066307 is about 81523.4095643699. The cubic root of 6646066307 is about 1880.1314895018.

The spelling of 6646066307 in words is "six billion, six hundred forty-six million, sixty-six thousand, three hundred seven".