11666457 has 24 divisors (see below), whose sum is σ = 19003040. Its totient is φ = 7068600.

The previous prime is 11666429. The next prime is 11666461. The reversal of 11666457 is 75466611.

It is not a de Polignac number, because 11666457 - 2⁶ = 11666393 is a prime.

It is a super-2 number, since 2×11666457² = 272212437865698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11666407) 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, 1482 + ... + 5052.

Almost surely, 2^11666457 is an apocalyptic number.

It is an amenable number.

11666457 is a deficient number, since it is larger than the sum of its proper divisors (7336583).

11666457 is a wasteful number, since it uses less digits than its factorization.

11666457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602 (or 3585 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 11666457 is about 3415.6195631247. The cubic root of 11666457 is about 226.8017118652.

The spelling of 11666457 in words is "eleven million, six hundred sixty-six thousand, four hundred fifty-seven".