2066611 has 4 divisors (see below), whose sum is σ = 2175400. Its totient is φ = 1957824.

The previous prime is 2066609. The next prime is 2066641. The reversal of 2066611 is 1166602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1166602 = 2 ⋅583301.

It is a cyclic number.

It is not a de Polignac number, because 2066611 - 2¹ = 2066609 is a prime.

It is a Duffinian number.

2066611 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2066641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54366 + ... + 54403.

It is an arithmetic number, because the mean of its divisors is an integer number (543850).

2^2066611 is an apocalyptic number.

2066611 is a deficient number, since it is larger than the sum of its proper divisors (108789).

2066611 is a wasteful number, since it uses less digits than its factorization.

2066611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108788.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2066611 is about 1437.5712156272. The cubic root of 2066611 is about 127.3756008239.

Subtracting from 2066611 its reverse (1166602), we obtain a palindrome (900009).

The spelling of 2066611 in words is "two million, sixty-six thousand, six hundred eleven".