667671610223 has 2 divisors, whose sum is σ = 667671610224. Its totient is φ = 667671610222.

The previous prime is 667671610201. The next prime is 667671610337. The reversal of 667671610223 is 322016176766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667671610223 - 2⁸ = 667671609967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667671670223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333835805111 + 333835805112.

It is an arithmetic number, because the mean of its divisors is an integer number (333835805112).

Almost surely, 2^667671610223 is an apocalyptic number.

667671610223 is a deficient number, since it is larger than the sum of its proper divisors (1).

667671610223 is an equidigital number, since it uses as much as digits as its factorization.

667671610223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 47.

Adding to 667671610223 its reverse (322016176766), we get a palindrome (989687786989).

The spelling of 667671610223 in words is "six hundred sixty-seven billion, six hundred seventy-one million, six hundred ten thousand, two hundred twenty-three".