2003533520020 has 48 divisors (see below), whose sum is σ = 4325945089536. Its totient is φ = 778981536000.

The previous prime is 2003533519993. The next prime is 2003533520123. The reversal of 2003533520020 is 200253353002.

It is a congruent number.

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, 4285776 + ... + 4730215.

It is an arithmetic number, because the mean of its divisors is an integer number (90123856032).

Almost surely, 2^{2003533520020} is an apocalyptic number.

2003533520020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2003533520020 is an abundant number, since it is smaller than the sum of its proper divisors (2322411569516).

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

2003533520020 is a wasteful number, since it uses less digits than its factorization.

2003533520020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9016312 (or 9016310 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 25.

Adding to 2003533520020 its reverse (200253353002), we get a palindrome (2203786873022).

The spelling of 2003533520020 in words is "two trillion, three billion, five hundred thirty-three million, five hundred twenty thousand, twenty".