20003507043216 has 20 divisors (see below), whose sum is σ = 51675726528432. Its totient is φ = 6667835681056.

The previous prime is 20003507043187. The next prime is 20003507043239. The reversal of 20003507043216 is 61234070530002.

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, 208369864986 + ... + 208369865081.

Almost surely, 2^{20003507043216} is an apocalyptic number.

It is an amenable number.

20003507043216 is an abundant number, since it is smaller than the sum of its proper divisors (31672219485216).

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

20003507043216 is a wasteful number, since it uses less digits than its factorization.

20003507043216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416739730078 (or 416739730072 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

Adding to 20003507043216 its reverse (61234070530002), we get a palindrome (81237577573218).

The spelling of 20003507043216 in words is "twenty trillion, three billion, five hundred seven million, forty-three thousand, two hundred sixteen".