166822267 has 2 divisors, whose sum is σ = 166822268. Its totient is φ = 166822266.

The previous prime is 166822259. The next prime is 166822273. The reversal of 166822267 is 762228661.

It is a strong prime.

It is an emirp because it is prime and its reverse (762228661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 166822267 - 2³ = 166822259 is a prime.

It is not a weakly prime, because it can be changed into another prime (166822237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83411133 + 83411134.

It is an arithmetic number, because the mean of its divisors is an integer number (83411134).

Almost surely, 2^166822267 is an apocalyptic number.

166822267 is a deficient number, since it is larger than the sum of its proper divisors (1).

166822267 is an equidigital number, since it uses as much as digits as its factorization.

166822267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 40.

The square root of 166822267 is about 12915.9694564520. The cubic root of 166822267 is about 550.4924152073.

The spelling of 166822267 in words is "one hundred sixty-six million, eight hundred twenty-two thousand, two hundred sixty-seven".