166046207 has 4 divisors (see below), whose sum is σ = 166406856. Its totient is φ = 165685560.

The previous prime is 166046201. The next prime is 166046227. The reversal of 166046207 is 702640661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166046207 - 2¹⁶ = 165980671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166046201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179633 + ... + 180554.

It is an arithmetic number, because the mean of its divisors is an integer number (41601714).

Almost surely, 2^166046207 is an apocalyptic number.

166046207 is a deficient number, since it is larger than the sum of its proper divisors (360649).

166046207 is an equidigital number, since it uses as much as digits as its factorization.

166046207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360648.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 166046207 is about 12885.8917813243. The cubic root of 166046207 is about 549.6374547363.

Adding to 166046207 its reverse (702640661), we get a palindrome (868686868).

The spelling of 166046207 in words is "one hundred sixty-six million, forty-six thousand, two hundred seven".