211128168 has 32 divisors (see below), whose sum is σ = 558869760. Its totient is φ = 66236160.

The previous prime is 211128167. The next prime is 211128187. The reversal of 211128168 is 861821112.

It is a happy number.

211128168 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (211128161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258328 + ... + 259143.

It is an arithmetic number, because the mean of its divisors is an integer number (17464680).

Almost surely, 2^211128168 is an apocalyptic number.

It is an amenable number.

211128168 is an abundant number, since it is smaller than the sum of its proper divisors (347741592).

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

211128168 is a wasteful number, since it uses less digits than its factorization.

211128168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517497 (or 517493 counting only the distinct ones).

The product of its digits is 1536, while the sum is 30.

The square root of 211128168 is about 14530.2501010822. The cubic root of 211128168 is about 595.4546984498.

The spelling of 211128168 in words is "two hundred eleven million, one hundred twenty-eight thousand, one hundred sixty-eight".