11666673 has 24 divisors (see below), whose sum is σ = 17917536. Its totient is φ = 7581600.

The previous prime is 11666663. The next prime is 11666689. The reversal of 11666673 is 37666611.

It is not a de Polignac number, because 11666673 - 2¹⁰ = 11665649 is a prime.

It is a super-2 number, since 2×11666673² = 272222517777858, which contains 22 as substring.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (11666653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9378 + ... + 10548.

It is an arithmetic number, because the mean of its divisors is an integer number (746564).

Almost surely, 2^11666673 is an apocalyptic number.

It is an amenable number.

11666673 is a deficient number, since it is larger than the sum of its proper divisors (6250863).

11666673 is an equidigital number, since it uses as much as digits as its factorization.

11666673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227 (or 1215 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 11666673 is about 3415.6511824248. The cubic root of 11666673 is about 226.8031115723.

The spelling of 11666673 in words is "eleven million, six hundred sixty-six thousand, six hundred seventy-three".