2011866216 has 64 divisors (see below), whose sum is σ = 5138380800. Its totient is φ = 656280768.

The previous prime is 2011866211. The next prime is 2011866239. The reversal of 2011866216 is 6126681102.

It is not an unprimeable number, because it can be changed into a prime (2011866211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208425 + ... + 217863.

It is an arithmetic number, because the mean of its divisors is an integer number (80287200).

Almost surely, 2^2011866216 is an apocalyptic number.

It is an amenable number.

2011866216 is an abundant number, since it is smaller than the sum of its proper divisors (3126514584).

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

2011866216 is a wasteful number, since it uses less digits than its factorization.

2011866216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9638 (or 9634 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 2011866216 is about 44853.8316757889. The cubic root of 2011866216 is about 1262.4078873553.

The spelling of 2011866216 in words is "two billion, eleven million, eight hundred sixty-six thousand, two hundred sixteen".