11666546 has 8 divisors (see below), whose sum is σ = 17573760. Its totient is φ = 5808628.

The previous prime is 11666533. The next prime is 11666549. The reversal of 11666546 is 64566611.

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

It is a super-2 number, since 2×11666546² = 272216591140232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11666549) 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, 11726 + ... + 12681.

It is an arithmetic number, because the mean of its divisors is an integer number (2196720).

Almost surely, 2^11666546 is an apocalyptic number.

11666546 is a deficient number, since it is larger than the sum of its proper divisors (5907214).

11666546 is a wasteful number, since it uses less digits than its factorization.

11666546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24648.

The product of its digits is 25920, while the sum is 35.

The square root of 11666546 is about 3415.6325914829. The cubic root of 11666546 is about 226.8022885985.

It can be divided in two parts, 11666 and 546, that multiplied together give a palindrome (6369636).

The spelling of 11666546 in words is "eleven million, six hundred sixty-six thousand, five hundred forty-six".