2144155056 has 60 divisors (see below), whose sum is σ = 5868515016. Its totient is φ = 672261120.

The previous prime is 2144155043. The next prime is 2144155067. The reversal of 2144155056 is 6505514412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1321926 + ... + 1323546.

Almost surely, 2^2144155056 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 2144155056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2934257508).

2144155056 is an abundant number, since it is smaller than the sum of its proper divisors (3724359960).

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

2144155056 is an equidigital number, since it uses as much as digits as its factorization.

2144155056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270 (or 1643 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 2144155056 is about 46305.0219306718. The cubic root of 2144155056 is about 1289.4922296990.

Adding to 2144155056 its reverse (6505514412), we get a palindrome (8649669468).

The spelling of 2144155056 in words is "two billion, one hundred forty-four million, one hundred fifty-five thousand, fifty-six".