2216089816 has 8 divisors (see below), whose sum is σ = 4155168420. Its totient is φ = 1108044904.

The previous prime is 2216089787. The next prime is 2216089819. The reversal of 2216089816 is 6189806122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2216089816² = 9822108145157827712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216089819) by changing a digit.

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 as a sum of consecutive naturals, namely, 138505606 + ... + 138505621.

Almost surely, 2^2216089816 is an apocalyptic number.

It is an amenable number.

2216089816 is a deficient number, since it is larger than the sum of its proper divisors (1939078604).

2216089816 is a wasteful number, since it uses less digits than its factorization.

2216089816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277011233 (or 277011229 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 2216089816 is about 47075.3631531399. The cubic root of 2216089816 is about 1303.7543965788.

The spelling of 2216089816 in words is "two billion, two hundred sixteen million, eighty-nine thousand, eight hundred sixteen".