20200181820216 has 96 divisors (see below), whose sum is σ = 53579526927360. Its totient is φ = 6344508494016.

The previous prime is 20200181820151. The next prime is 20200181820241. The reversal of 20200181820216 is 61202818100202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11023000 + ... + 12724263.

It is an arithmetic number, because the mean of its divisors is an integer number (558120072160).

Almost surely, 2^{20200181820216} is an apocalyptic number.

It is an amenable number.

20200181820216 is an abundant number, since it is smaller than the sum of its proper divisors (33379345107144).

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

20200181820216 is a wasteful number, since it uses less digits than its factorization.

20200181820216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23747385 (or 23747358 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

Adding to 20200181820216 its reverse (61202818100202), we get a palindrome (81402999920418).

The spelling of 20200181820216 in words is "twenty trillion, two hundred billion, one hundred eighty-one million, eight hundred twenty thousand, two hundred sixteen".