2005551443244 has 48 divisors (see below), whose sum is σ = 4709255936000. Its totient is φ = 664292192256.

The previous prime is 2005551443227. The next prime is 2005551443347. The reversal of 2005551443244 is 4423441555002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1290309 + ... + 2382435.

Almost surely, 2^{2005551443244} is an apocalyptic number.

It is an amenable number.

2005551443244 is an abundant number, since it is smaller than the sum of its proper divisors (2703704492756).

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

2005551443244 is a wasteful number, since it uses less digits than its factorization.

2005551443244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093102 (or 1093100 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 2005551443244 its reverse (4423441555002), we get a palindrome (6428992998246).

The spelling of 2005551443244 in words is "two trillion, five billion, five hundred fifty-one million, four hundred forty-three thousand, two hundred forty-four".