11666167 has 4 divisors (see below), whose sum is σ = 11813920. Its totient is φ = 11518416.

The previous prime is 11666159. The next prime is 11666173. The reversal of 11666167 is 76166611.

11666167 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, and also an emirpimes, since its reverse is a distinct semiprime: 76166611 = 19 ⋅4008769.

It is a cyclic number.

It is not a de Polignac number, because 11666167 - 2³ = 11666159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11666117) 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, 73758 + ... + 73915.

It is an arithmetic number, because the mean of its divisors is an integer number (2953480).

Almost surely, 2^11666167 is an apocalyptic number.

11666167 is a deficient number, since it is larger than the sum of its proper divisors (147753).

11666167 is an equidigital number, since it uses as much as digits as its factorization.

11666167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147752.

The product of its digits is 9072, while the sum is 34.

The square root of 11666167 is about 3415.5771108262. The cubic root of 11666167 is about 226.7998326017.

The spelling of 11666167 in words is "eleven million, six hundred sixty-six thousand, one hundred sixty-seven".