6665346223 has 2 divisors, whose sum is σ = 6665346224. Its totient is φ = 6665346222.

The previous prime is 6665346161. The next prime is 6665346257. The reversal of 6665346223 is 3226435666.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6665346223 - 2²¹ = 6663249071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6665346223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6665346323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332673111 + 3332673112.

It is an arithmetic number, because the mean of its divisors is an integer number (3332673112).

Almost surely, 2^6665346223 is an apocalyptic number.

6665346223 is a deficient number, since it is larger than the sum of its proper divisors (1).

6665346223 is an equidigital number, since it uses as much as digits as its factorization.

6665346223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 43.

The square root of 6665346223 is about 81641.5716592962. The cubic root of 6665346223 is about 1881.9477910509.

The spelling of 6665346223 in words is "six billion, six hundred sixty-five million, three hundred forty-six thousand, two hundred twenty-three".