2216856704 has 16 divisors (see below), whose sum is σ = 4416394470. Its totient is φ = 1108428288.

The previous prime is 2216856647. The next prime is 2216856731. The reversal of 2216856704 is 4076586122.

It can be written as a sum of positive squares in only one way, i.e., 1258830400 + 958026304 = 35480^2 + 30952^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8659469 + ... + 8659724.

Almost surely, 2^2216856704 is an apocalyptic number.

It is an amenable number.

2216856704 is a deficient number, since it is larger than the sum of its proper divisors (2199537766).

2216856704 is an equidigital number, since it uses as much as digits as its factorization.

2216856704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17319207 (or 17319195 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 2216856704 is about 47083.5077707683. The cubic root of 2216856704 is about 1303.9047692885.

The spelling of 2216856704 in words is "two billion, two hundred sixteen million, eight hundred fifty-six thousand, seven hundred four".