11666951 has 8 divisors (see below), whose sum is σ = 12239040. Its totient is φ = 11108448.

The previous prime is 11666939. The next prime is 11666953. The reversal of 11666951 is 15966611.

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

It is a cyclic number.

It is not a de Polignac number, because 11666951 - 2¹⁴ = 11650567 is a prime.

It is a super-2 number, since 2×11666951² = 272235491272802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11666953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616 + ... + 5093.

It is an arithmetic number, because the mean of its divisors is an integer number (1529880).

Almost surely, 2^11666951 is an apocalyptic number.

11666951 is a deficient number, since it is larger than the sum of its proper divisors (572089).

11666951 is an equidigital number, since it uses as much as digits as its factorization.

11666951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6793.

The product of its digits is 9720, while the sum is 35.

The square root of 11666951 is about 3415.6918772044. The cubic root of 11666951 is about 226.8049130218.

The spelling of 11666951 in words is "eleven million, six hundred sixty-six thousand, nine hundred fifty-one".