11066660 has 72 divisors (see below), whose sum is σ = 27147960. Its totient is φ = 3773440.

The previous prime is 11066651. The next prime is 11066669. The reversal of 11066660 is 6666011.

11066660 = T₃₁ + T₃₂ + ... + T₄₀₄.

It is an interprime number because it is at equal distance from previous prime (11066651) and next prime (11066669).

It can be written as a sum of positive squares in 4 ways, for example, as 465124 + 10601536 = 682^2 + 3256^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11066669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41006 + ... + 41274.

It is an arithmetic number, because the mean of its divisors is an integer number (377055).

Almost surely, 2^11066660 is an apocalyptic number.

11066660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11066660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13573980).

11066660 is an abundant number, since it is smaller than the sum of its proper divisors (16081300).

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

11066660 is a wasteful number, since it uses less digits than its factorization.

11066660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 11066660 is about 3326.6589846271. The cubic root of 11066660 is about 222.8463486053.

The spelling of 11066660 in words is "eleven million, sixty-six thousand, six hundred sixty".