11166660 has 120 divisors (see below), whose sum is σ = 35919576. Its totient is φ = 2903040.

The previous prime is 11166643. The next prime is 11166679. The reversal of 11166660 is 6666111.

It can be written as a sum of positive squares in 4 ways, for example, as 1016064 + 10150596 = 1008^2 + 3186^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 98764 + ... + 98876.

Almost surely, 2^11166660 is an apocalyptic number.

11166660 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 11166660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17959788).

11166660 is an abundant number, since it is smaller than the sum of its proper divisors (24752916).

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

11166660 is a wasteful number, since it uses less digits than its factorization.

11166660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 11166660 is about 3341.6552784511. The cubic root of 11166660 is about 223.5155612786.

It can be divided in two parts, 1116 and 6660, that added together give a 5-th power (7776 = 6⁵).

The spelling of 11166660 in words is "eleven million, one hundred sixty-six thousand, six hundred sixty".