2005166 has 4 divisors (see below), whose sum is σ = 3007752. Its totient is φ = 1002582.

The previous prime is 2005151. The next prime is 2005181. The reversal of 2005166 is 6615002.

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

It is an interprime number because it is at equal distance from previous prime (2005151) and next prime (2005181).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501290 + ... + 501293.

It is an arithmetic number, because the mean of its divisors is an integer number (751938).

2^2005166 is an apocalyptic number.

2005166 is a deficient number, since it is larger than the sum of its proper divisors (1002586).

2005166 is a wasteful number, since it uses less digits than its factorization.

2005166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002585.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 2005166 is about 1416.0388412752. The cubic root of 2005166 is about 126.1004909251.

The spelling of 2005166 in words is "two million, five thousand, one hundred sixty-six".