166000007 has 2 divisors, whose sum is σ = 166000008. Its totient is φ = 166000006.

The previous prime is 165999997. The next prime is 166000013. The reversal of 166000007 is 700000661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166000007 - 2¹² = 165995911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (166000027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83000003 + 83000004.

It is an arithmetic number, because the mean of its divisors is an integer number (83000004).

Almost surely, 2^166000007 is an apocalyptic number.

166000007 is a deficient number, since it is larger than the sum of its proper divisors (1).

166000007 is an equidigital number, since it uses as much as digits as its factorization.

166000007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 166000007 is about 12884.0989983778. The cubic root of 166000007 is about 549.5864737346.

Adding to 166000007 its reverse (700000661), we get a palindrome (866000668).

The spelling of 166000007 in words is "one hundred sixty-six million, seven", and thus it is an aban number.