2666111 has 8 divisors (see below), whose sum is σ = 3072000. Its totient is φ = 2266488.

The previous prime is 2666101. The next prime is 2666117. The reversal of 2666111 is 1116662.

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

It is not a de Polignac number, because 2666111 - 2¹⁴ = 2649727 is a prime.

It is a super-3 number, since 3×2666111³ = 56853333632078176893, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666117) 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, 611 + ... + 2388.

It is an arithmetic number, because the mean of its divisors is an integer number (384000).

2^2666111 is an apocalyptic number.

2666111 is a deficient number, since it is larger than the sum of its proper divisors (405889).

2666111 is a wasteful number, since it uses less digits than its factorization.

2666111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133.

The product of its digits is 432, while the sum is 23.

The square root of 2666111 is about 1632.8230155164. The cubic root of 2666111 is about 138.6626222573.

The spelling of 2666111 in words is "two million, six hundred sixty-six thousand, one hundred eleven".