2216604756 has 12 divisors (see below), whose sum is σ = 5172077792. Its totient is φ = 738868248.

The previous prime is 2216604739. The next prime is 2216604779. The reversal of 2216604756 is 6574066122.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92358520 + ... + 92358543.

Almost surely, 2^2216604756 is an apocalyptic number.

It is an amenable number.

2216604756 is an abundant number, since it is smaller than the sum of its proper divisors (2955473036).

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

2216604756 is a wasteful number, since it uses less digits than its factorization.

2216604756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184717070 (or 184717068 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 2216604756 is about 47080.8321506747. The cubic root of 2216604756 is about 1303.8553707197.

The spelling of 2216604756 in words is "two billion, two hundred sixteen million, six hundred four thousand, seven hundred fifty-six".