11681168 has 30 divisors (see below), whose sum is σ = 23114034. Its totient is φ = 5718528.

The previous prime is 11681167. The next prime is 11681183. The reversal of 11681168 is 86118611.

It can be written as a sum of positive squares in 3 ways, for example, as 2729104 + 8952064 = 1652^2 + 2992^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11681167) 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 5 ways as a sum of consecutive naturals, for example, 85196 + ... + 85332.

Almost surely, 2^11681168 is an apocalyptic number.

It is an amenable number.

11681168 is a deficient number, since it is larger than the sum of its proper divisors (11432866).

11681168 is an equidigital number, since it uses as much as digits as its factorization.

11681168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 212 counting only the distinct ones).

The product of its digits is 2304, while the sum is 32.

The square root of 11681168 is about 3417.7723739301. The cubic root of 11681168 is about 226.8970015369.

Adding to 11681168 its reverse (86118611), we get a palindrome (97799779).

The spelling of 11681168 in words is "eleven million, six hundred eighty-one thousand, one hundred sixty-eight".