2660111 has 4 divisors (see below), whose sum is σ = 2775792. Its totient is φ = 2544432.

The previous prime is 2660107. The next prime is 2660117. The reversal of 2660111 is 1110662.

It is a happy number.

2660111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2660111 - 2² = 2660107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2660111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57806 + ... + 57851.

It is an arithmetic number, because the mean of its divisors is an integer number (693948).

2^2660111 is an apocalyptic number.

2660111 is a deficient number, since it is larger than the sum of its proper divisors (115681).

2660111 is a wasteful number, since it uses less digits than its factorization.

2660111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115680.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 2660111 is about 1630.9846719084. The cubic root of 2660111 is about 138.5585254878.

Adding to 2660111 its reverse (1110662), we get a palindrome (3770773).

The spelling of 2660111 in words is "two million, six hundred sixty thousand, one hundred eleven".