220166203 has 2 divisors, whose sum is σ = 220166204. Its totient is φ = 220166202.

The previous prime is 220166197. The next prime is 220166207. The reversal of 220166203 is 302661022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220166203 - 2⁵ = 220166171 is a prime.

It is equal to p_12131158 and since 220166203 and 12131158 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (220166207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110083101 + 110083102.

It is an arithmetic number, because the mean of its divisors is an integer number (110083102).

Almost surely, 2^220166203 is an apocalyptic number.

220166203 is a deficient number, since it is larger than the sum of its proper divisors (1).

220166203 is an equidigital number, since it uses as much as digits as its factorization.

220166203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 220166203 is about 14837.9986184121. The cubic root of 220166203 is about 603.8330560280.

The spelling of 220166203 in words is "two hundred twenty million, one hundred sixty-six thousand, two hundred three".