6664655351 has 2 divisors, whose sum is σ = 6664655352. Its totient is φ = 6664655350.

The previous prime is 6664655341. The next prime is 6664655353. The reversal of 6664655351 is 1535564666.

6664655351 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6664655351 - 2¹⁸ = 6664393207 is a prime.

It is a super-2 number, since 2×6664655351² = 88835261895225866402, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 6664655353, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6664655296 and 6664655305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6664655353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332327675 + 3332327676.

It is an arithmetic number, because the mean of its divisors is an integer number (3332327676).

Almost surely, 2^6664655351 is an apocalyptic number.

6664655351 is a deficient number, since it is larger than the sum of its proper divisors (1).

6664655351 is an equidigital number, since it uses as much as digits as its factorization.

6664655351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944000, while the sum is 47.

The square root of 6664655351 is about 81637.3404209128. The cubic root of 6664655351 is about 1881.8827666738.

The spelling of 6664655351 in words is "six billion, six hundred sixty-four million, six hundred fifty-five thousand, three hundred fifty-one".