11666407 has 2 divisors, whose sum is σ = 11666408. Its totient is φ = 11666406.

The previous prime is 11666393. The next prime is 11666419. The reversal of 11666407 is 70466611.

11666407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11666407 - 2¹⁵ = 11633639 is a prime.

It is a super-2 number, since 2×11666407² = 272210104579298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11666477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833203 + 5833204.

It is an arithmetic number, because the mean of its divisors is an integer number (5833204).

Almost surely, 2^11666407 is an apocalyptic number.

11666407 is a deficient number, since it is larger than the sum of its proper divisors (1).

11666407 is an equidigital number, since it uses as much as digits as its factorization.

11666407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 11666407 is about 3415.6122438005. The cubic root of 11666407 is about 226.8013878565.

The spelling of 11666407 in words is "eleven million, six hundred sixty-six thousand, four hundred seven".