11666043 has 6 divisors (see below), whose sum is σ = 16850964. Its totient is φ = 7777356.

The previous prime is 11666041. The next prime is 11666047. The reversal of 11666043 is 34066611.

It is not a de Polignac number, because 11666043 - 2¹ = 11666041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11665998 and 11666016.

It is not an unprimeable number, because it can be changed into a prime (11666041) 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 5 ways as a sum of consecutive naturals, for example, 648105 + ... + 648122.

It is an arithmetic number, because the mean of its divisors is an integer number (2808494).

Almost surely, 2^11666043 is an apocalyptic number.

11666043 is a deficient number, since it is larger than the sum of its proper divisors (5184921).

11666043 is a wasteful number, since it uses less digits than its factorization.

11666043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296233 (or 1296230 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 11666043 is about 3415.5589586479. The cubic root of 11666043 is about 226.7990290450.

The spelling of 11666043 in words is "eleven million, six hundred sixty-six thousand, forty-three".