2216634544 has 40 divisors (see below), whose sum is σ = 4543838640. Its totient is φ = 1044626688.

The previous prime is 2216634521. The next prime is 2216634551. The reversal of 2216634544 is 4454366122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41382 + ... + 78394.

It is an arithmetic number, because the mean of its divisors is an integer number (113595966).

Almost surely, 2^2216634544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216634544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2271919320).

2216634544 is an abundant number, since it is smaller than the sum of its proper divisors (2327204096).

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

2216634544 is a wasteful number, since it uses less digits than its factorization.

2216634544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37237 (or 37231 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 2216634544 is about 47081.1484991605. The cubic root of 2216634544 is about 1303.8612113445.

The spelling of 2216634544 in words is "two billion, two hundred sixteen million, six hundred thirty-four thousand, five hundred forty-four".