6666097723 has 2 divisors, whose sum is σ = 6666097724. Its totient is φ = 6666097722.

The previous prime is 6666097717. The next prime is 6666097811. The reversal of 6666097723 is 3277906666.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6666097723 - 2⁹ = 6666097211 is a prime.

It is not a weakly prime, because it can be changed into another prime (6666097703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333048861 + 3333048862.

It is an arithmetic number, because the mean of its divisors is an integer number (3333048862).

Almost surely, 2^6666097723 is an apocalyptic number.

6666097723 is a deficient number, since it is larger than the sum of its proper divisors (1).

6666097723 is an equidigital number, since it uses as much as digits as its factorization.

6666097723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3429216, while the sum is 52.

The square root of 6666097723 is about 81646.1739642465. The cubic root of 6666097723 is about 1882.0185165901.

The spelling of 6666097723 in words is "six billion, six hundred sixty-six million, ninety-seven thousand, seven hundred twenty-three".