2211766216 has 32 divisors (see below), whose sum is σ = 4532093280. Its totient is φ = 1003564800.

The previous prime is 2211766213. The next prime is 2211766253. The reversal of 2211766216 is 6126671122.

It is not an unprimeable number, because it can be changed into a prime (2211766213) 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 7 ways as a sum of consecutive naturals, for example, 28240 + ... + 72256.

It is an arithmetic number, because the mean of its divisors is an integer number (141627915).

Almost surely, 2^2211766216 is an apocalyptic number.

It is an amenable number.

2211766216 is an abundant number, since it is smaller than the sum of its proper divisors (2320327064).

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

2211766216 is a wasteful number, since it uses less digits than its factorization.

2211766216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44605 (or 44601 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 2211766216 is about 47029.4186228152. The cubic root of 2211766216 is about 1302.9059679146.

The spelling of 2211766216 in words is "two billion, two hundred eleven million, seven hundred sixty-six thousand, two hundred sixteen".