2003315225444 has 24 divisors (see below), whose sum is σ = 3837371793528. Its totient is φ = 909449533440.

The previous prime is 2003315225441. The next prime is 2003315225467. The reversal of 2003315225444 is 4445225133002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 426879289600 + 1576435935844 = 653360^2 + 1255562^2 .

It is not an unprimeable number, because it can be changed into a prime (2003315225441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315777917 + ... + 315784260.

It is an arithmetic number, because the mean of its divisors is an integer number (159890491397).

Almost surely, 2^{2003315225444} is an apocalyptic number.

It is an amenable number.

2003315225444 is a deficient number, since it is larger than the sum of its proper divisors (1834056568084).

2003315225444 is a wasteful number, since it uses less digits than its factorization.

2003315225444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631562255 (or 631562253 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 2003315225444 in words is "two trillion, three billion, three hundred fifteen million, two hundred twenty-five thousand, four hundred forty-four".