6666446627 has 2 divisors, whose sum is σ = 6666446628. Its totient is φ = 6666446626.

The previous prime is 6666446587. The next prime is 6666446653. The reversal of 6666446627 is 7266446666.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6666446627 - 2²⁸ = 6398011171 is a prime.

It is not a weakly prime, because it can be changed into another prime (6666446327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333223313 + 3333223314.

It is an arithmetic number, because the mean of its divisors is an integer number (3333223314).

Almost surely, 2^6666446627 is an apocalyptic number.

6666446627 is a deficient number, since it is larger than the sum of its proper divisors (1).

6666446627 is an equidigital number, since it uses as much as digits as its factorization.

6666446627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 53.

The square root of 6666446627 is about 81648.3106193876. The cubic root of 6666446627 is about 1882.0513510088.

The spelling of 6666446627 in words is "six billion, six hundred sixty-six million, four hundred forty-six thousand, six hundred twenty-seven".