2100044015256 has 128 divisors (see below), whose sum is σ = 5781094675200. Its totient is φ = 630415994880.

The previous prime is 2100044015189. The next prime is 2100044015327. The reversal of 2100044015256 is 6525104400012.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 60452100 + ... + 60486828.

It is an arithmetic number, because the mean of its divisors is an integer number (45164802150).

Almost surely, 2^{2100044015256} 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 2100044015256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2890547337600).

2100044015256 is an abundant number, since it is smaller than the sum of its proper divisors (3681050659944).

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

2100044015256 is a wasteful number, since it uses less digits than its factorization.

2100044015256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36889 (or 36885 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 2100044015256 its reverse (6525104400012), we get a palindrome (8625148415268).

The spelling of 2100044015256 in words is "two trillion, one hundred billion, forty-four million, fifteen thousand, two hundred fifty-six".