166006567 has 2 divisors, whose sum is σ = 166006568. Its totient is φ = 166006566.

The previous prime is 166006549. The next prime is 166006573. The reversal of 166006567 is 765600661.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166006567 - 2¹¹ = 166004519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166006597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83003283 + 83003284.

It is an arithmetic number, because the mean of its divisors is an integer number (83003284).

Almost surely, 2^166006567 is an apocalyptic number.

166006567 is a deficient number, since it is larger than the sum of its proper divisors (1).

166006567 is an equidigital number, since it uses as much as digits as its factorization.

166006567 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 166006567 is about 12884.3535732298. The cubic root of 166006567 is about 549.5937131716.

The spelling of 166006567 in words is "one hundred sixty-six million, six thousand, five hundred sixty-seven".