2189983616 has 32 divisors (see below), whose sum is σ = 4378456080. Its totient is φ = 1091077120.

The previous prime is 2189983583. The next prime is 2189983619. The reversal of 2189983616 is 6163899812.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189983619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5525 + ... + 66411.

Almost surely, 2^2189983616 is an apocalyptic number.

It is an amenable number.

2189983616 is a deficient number, since it is larger than the sum of its proper divisors (2188472464).

2189983616 is an equidigital number, since it uses as much as digits as its factorization.

2189983616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61182 (or 61170 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 53.

The square root of 2189983616 is about 46797.2607745368. The cubic root of 2189983616 is about 1298.6146219916.

The spelling of 2189983616 in words is "two billion, one hundred eighty-nine million, nine hundred eighty-three thousand, six hundred sixteen".