5216820738020 has 24 divisors (see below), whose sum is σ = 10956673567224. Its totient is φ = 2086471149056.

The previous prime is 5216820738001. The next prime is 5216820738037. The reversal of 5216820738020 is 208370286125.

It can be written as a sum of positive squares in 4 ways, for example, as 901952882944 + 4314867855076 = 949712^2 + 2077226^2 .

It is a super-2 number, since 2×5216820738020² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15905237 + ... + 16229916.

It is an arithmetic number, because the mean of its divisors is an integer number (456528065301).

Almost surely, 2^{5216820738020} is an apocalyptic number.

It is an amenable number.

5216820738020 is an abundant number, since it is smaller than the sum of its proper divisors (5739852829204).

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

5216820738020 is a wasteful number, since it uses less digits than its factorization.

5216820738020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32143279 (or 32143277 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 5216820738020 in words is "five trillion, two hundred sixteen billion, eight hundred twenty million, seven hundred thirty-eight thousand, twenty".