13330220020 has 48 divisors (see below), whose sum is σ = 30338916048. Its totient is φ = 4890562560.

The previous prime is 13330219993. The next prime is 13330220021. The reversal of 13330220020 is 2002203331.

It can be written as a sum of positive squares in 8 ways, for example, as 1100514276 + 12229705744 = 33174^2 + 110588^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13330219976 and 13330220003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13330220021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122461 + ... + 204100.

It is an arithmetic number, because the mean of its divisors is an integer number (632060751).

Almost surely, 2^13330220020 is an apocalyptic number.

13330220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13330220020 is an abundant number, since it is smaller than the sum of its proper divisors (17008696028).

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

13330220020 is a wasteful number, since it uses less digits than its factorization.

13330220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326740 (or 326738 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 13330220020 its reverse (2002203331), we get a palindrome (15332423351).

The spelling of 13330220020 in words is "thirteen billion, three hundred thirty million, two hundred twenty thousand, twenty".