2055666 has 16 divisors (see below), whose sum is σ = 4126464. Its totient is φ = 682704.

The previous prime is 2055649. The next prime is 2055673. The reversal of 2055666 is 6665502.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1951 + ... + 2813.

It is an arithmetic number, because the mean of its divisors is an integer number (257904).

2^2055666 is an apocalyptic number.

2055666 is an abundant number, since it is smaller than the sum of its proper divisors (2070798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2055666 is a wasteful number, since it uses less digits than its factorization.

2055666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2055666 is about 1433.7593940407. The cubic root of 2055666 is about 127.1503376004.

The spelling of 2055666 in words is "two million, fifty-five thousand, six hundred sixty-six".