117666223 has 2 divisors, whose sum is σ = 117666224. Its totient is φ = 117666222.

The previous prime is 117666217. The next prime is 117666233. The reversal of 117666223 is 322666711.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117666223 - 2⁵ = 117666191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117666233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58833111 + 58833112.

It is an arithmetic number, because the mean of its divisors is an integer number (58833112).

Almost surely, 2^117666223 is an apocalyptic number.

117666223 is a deficient number, since it is larger than the sum of its proper divisors (1).

117666223 is an equidigital number, since it uses as much as digits as its factorization.

117666223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 117666223 is about 10847.4062798440. The cubic root of 117666223 is about 490.0239097038.

The spelling of 117666223 in words is "one hundred seventeen million, six hundred sixty-six thousand, two hundred twenty-three".