2005501144044 has 48 divisors (see below), whose sum is σ = 4954867642368. Its totient is φ = 629164117248.

The previous prime is 2005501144039. The next prime is 2005501144063. The reversal of 2005501144044 is 4404411055002.

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, 19043317 + ... + 19148339.

It is an arithmetic number, because the mean of its divisors is an integer number (103226409216).

Almost surely, 2^{2005501144044} is an apocalyptic number.

It is an amenable number.

2005501144044 is an abundant number, since it is smaller than the sum of its proper divisors (2949366498324).

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

2005501144044 is a wasteful number, since it uses less digits than its factorization.

2005501144044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198654 (or 198652 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 2005501144044 its reverse (4404411055002), we get a palindrome (6409912199046).

The spelling of 2005501144044 in words is "two trillion, five billion, five hundred one million, one hundred forty-four thousand, forty-four".