11666850 has 96 divisors (see below), whose sum is σ = 32331264. Its totient is φ = 2764800.

The previous prime is 11666843. The next prime is 11666861. The reversal of 11666850 is 5866611.

It is a super-2 number, since 2×11666850² = 272230777845000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60354 + ... + 60546.

It is an arithmetic number, because the mean of its divisors is an integer number (336784).

Almost surely, 2^11666850 is an apocalyptic number.

11666850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11666850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16165632).

11666850 is an abundant number, since it is smaller than the sum of its proper divisors (20664414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11666850 is a wasteful number, since it uses less digits than its factorization.

11666850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 11666850 is about 3415.6770924664. The cubic root of 11666850 is about 226.8042585416.

It can be divided in two parts, 116 and 66850, that added together give a palindrome (66966).

The spelling of 11666850 in words is "eleven million, six hundred sixty-six thousand, eight hundred fifty".