2066655 has 8 divisors (see below), whose sum is σ = 3306672. Its totient is φ = 1102208.

The previous prime is 2066653. The next prime is 2066681. The reversal of 2066655 is 5566602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2066655 - 2¹ = 2066653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68874 + ... + 68903.

It is an arithmetic number, because the mean of its divisors is an integer number (413334).

2^2066655 is an apocalyptic number.

2066655 is a deficient number, since it is larger than the sum of its proper divisors (1240017).

2066655 is a wasteful number, since it uses less digits than its factorization.

2066655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137785.

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

The square root of 2066655 is about 1437.5865191355. The cubic root of 2066655 is about 127.3765047977.

The spelling of 2066655 in words is "two million, sixty-six thousand, six hundred fifty-five".