2005511444120 has 16 divisors (see below), whose sum is σ = 4512400749360. Its totient is φ = 802204577632.

The previous prime is 2005511444113. The next prime is 2005511444159. The reversal of 2005511444120 is 214441155002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25068893012 + ... + 25068893091.

It is an arithmetic number, because the mean of its divisors is an integer number (282025046835).

Almost surely, 2^{2005511444120} is an apocalyptic number.

2005511444120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2005511444120 is an abundant number, since it is smaller than the sum of its proper divisors (2506889305240).

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

2005511444120 is a wasteful number, since it uses less digits than its factorization.

2005511444120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50137786114 (or 50137786110 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 2005511444120 its reverse (214441155002), we get a palindrome (2219952599122).

The spelling of 2005511444120 in words is "two trillion, five billion, five hundred eleven million, four hundred forty-four thousand, one hundred twenty".