11666250 has 120 divisors (see below), whose sum is σ = 33992244. Its totient is φ = 2880000.

The previous prime is 11666243. The next prime is 11666251. The reversal of 11666250 is 5266611.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 2099601 + 9566649 = 1449^2 + 3093^2 .

It is a super-2 number, since 2×11666250² = 272202778125000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11666251) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 191220 + ... + 191280.

Almost surely, 2^11666250 is an apocalyptic number.

11666250 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 11666250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16996122).

11666250 is an abundant number, since it is smaller than the sum of its proper divisors (22325994).

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

11666250 is a wasteful number, since it uses less digits than its factorization.

11666250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 11666250 is about 3415.5892610207. The cubic root of 11666250 is about 226.8003704631.

It can be divided in two parts, 116 and 66250, that added together give a palindrome (66366).

The spelling of 11666250 in words is "eleven million, six hundred sixty-six thousand, two hundred fifty".