6216666223 has 2 divisors, whose sum is σ = 6216666224. Its totient is φ = 6216666222.

The previous prime is 6216666193. The next prime is 6216666227. The reversal of 6216666223 is 3226666126.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6216666223 - 2⁵ = 6216666191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6216666227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3108333111 + 3108333112.

It is an arithmetic number, because the mean of its divisors is an integer number (3108333112).

Almost surely, 2^6216666223 is an apocalyptic number.

6216666223 is a deficient number, since it is larger than the sum of its proper divisors (1).

6216666223 is an equidigital number, since it uses as much as digits as its factorization.

6216666223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 40.

The square root of 6216666223 is about 78845.8383365920. The cubic root of 6216666223 is about 1838.7351719225.

The spelling of 6216666223 in words is "six billion, two hundred sixteen million, six hundred sixty-six thousand, two hundred twenty-three".