2159237216 has 48 divisors (see below), whose sum is σ = 4536126000. Its totient is φ = 1008764928.

The previous prime is 2159237183. The next prime is 2159237221. The reversal of 2159237216 is 6127329512.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 2159237216.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20060 + ... + 68708.

It is an arithmetic number, because the mean of its divisors is an integer number (94502625).

Almost surely, 2^2159237216 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 2159237216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2268063000).

2159237216 is an abundant number, since it is smaller than the sum of its proper divisors (2376888784).

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

2159237216 is a wasteful number, since it uses less digits than its factorization.

2159237216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48751 (or 48743 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 2159237216 is about 46467.5931806243. The cubic root of 2159237216 is about 1292.5086323714.

The spelling of 2159237216 in words is "two billion, one hundred fifty-nine million, two hundred thirty-seven thousand, two hundred sixteen".