11981168 has 10 divisors (see below), whose sum is σ = 23213544. Its totient is φ = 5990576.

The previous prime is 11981161. The next prime is 11981197. The reversal of 11981168 is 86118911.

11981168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11981161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374396 + ... + 374427.

Almost surely, 2^11981168 is an apocalyptic number.

It is an amenable number.

11981168 is a deficient number, since it is larger than the sum of its proper divisors (11232376).

11981168 is an equidigital number, since it uses as much as digits as its factorization.

11981168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748831 (or 748825 counting only the distinct ones).

The product of its digits is 3456, while the sum is 35.

The square root of 11981168 is about 3461.3823828060. The cubic root of 11981168 is about 228.8230232590.

The spelling of 11981168 in words is "eleven million, nine hundred eighty-one thousand, one hundred sixty-eight".