11666497 has 8 divisors (see below), whose sum is σ = 12594240. Its totient is φ = 10773840.

The previous prime is 11666491. The next prime is 11666521. The reversal of 11666497 is 79466611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11666497 is a prime.

It is a super-2 number, since 2×11666497² = 272214304502018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11666491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8079 + ... + 9412.

It is an arithmetic number, because the mean of its divisors is an integer number (1574280).

Almost surely, 2^11666497 is an apocalyptic number.

It is an amenable number.

11666497 is a deficient number, since it is larger than the sum of its proper divisors (927743).

11666497 is a wasteful number, since it uses less digits than its factorization.

11666497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17543.

The product of its digits is 54432, while the sum is 40.

The square root of 11666497 is about 3415.6254185727. The cubic root of 11666497 is about 226.8019710716.

The spelling of 11666497 in words is "eleven million, six hundred sixty-six thousand, four hundred ninety-seven".