2002166 has 16 divisors (see below), whose sum is σ = 3176448. Its totient is φ = 945000.

The previous prime is 2002159. The next prime is 2002199. The reversal of 2002166 is 6612002.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2291 + ... + 3041.

It is an arithmetic number, because the mean of its divisors is an integer number (198528).

2^2002166 is an apocalyptic number.

2002166 is a deficient number, since it is larger than the sum of its proper divisors (1174282).

2002166 is a wasteful number, since it uses less digits than its factorization.

2002166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2002166 is about 1414.9791517899. The cubic root of 2002166 is about 126.0375717298.

Adding to 2002166 its reverse (6612002), we get a palindrome (8614168).

The spelling of 2002166 in words is "two million, two thousand, one hundred sixty-six".