166027207 has 2 divisors, whose sum is σ = 166027208. Its totient is φ = 166027206.

The previous prime is 166027201. The next prime is 166027229. The reversal of 166027207 is 702720661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166027207 - 2¹⁹ = 165502919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166027201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83013603 + 83013604.

It is an arithmetic number, because the mean of its divisors is an integer number (83013604).

Almost surely, 2^166027207 is an apocalyptic number.

166027207 is a deficient number, since it is larger than the sum of its proper divisors (1).

166027207 is an equidigital number, since it uses as much as digits as its factorization.

166027207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 166027207 is about 12885.1545198341. The cubic root of 166027207 is about 549.6164896685.

Adding to 166027207 its reverse (702720661), we get a palindrome (868747868).

The spelling of 166027207 in words is "one hundred sixty-six million, twenty-seven thousand, two hundred seven".