166206011 has 2 divisors, whose sum is σ = 166206012. Its totient is φ = 166206010.

The previous prime is 166205983. The next prime is 166206037. The reversal of 166206011 is 110602661.

166206011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 166206011 - 2⁶ = 166205947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166208011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83103005 + 83103006.

It is an arithmetic number, because the mean of its divisors is an integer number (83103006).

Almost surely, 2^166206011 is an apocalyptic number.

166206011 is a deficient number, since it is larger than the sum of its proper divisors (1).

166206011 is an equidigital number, since it uses as much as digits as its factorization.

166206011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 166206011 is about 12892.0910251208. The cubic root of 166206011 is about 549.8137231438.

Adding to 166206011 its reverse (110602661), we get a palindrome (276808672).

The spelling of 166206011 in words is "one hundred sixty-six million, two hundred six thousand, eleven".