2222159616 has 144 divisors (see below), whose sum is σ = 6749696800. Its totient is φ = 720617472.

The previous prime is 2222159609. The next prime is 2222159617. The reversal of 2222159616 is 6169512222.

2222159616 is a `hidden beast` number, since 2 + 2 + 22 + 15 + 9 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222159617) 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 in 15 ways as a sum of consecutive naturals, for example, 251400 + ... + 260088.

Almost surely, 2^2222159616 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 2222159616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3374848400).

2222159616 is an abundant number, since it is smaller than the sum of its proper divisors (4527537184).

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

2222159616 is an equidigital number, since it uses as much as digits as its factorization.

2222159616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8751 (or 8731 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 2222159616 is about 47139.7880351620. The cubic root of 2222159616 is about 1304.9436255209.

The spelling of 2222159616 in words is "two billion, two hundred twenty-two million, one hundred fifty-nine thousand, six hundred sixteen".