20331033432020 has 96 divisors (see below), whose sum is σ = 45410249717280. Its totient is φ = 7619573514240.

The previous prime is 20331033432019. The next prime is 20331033432029. The reversal of 20331033432020 is 2023433013302.

It can be written as a sum of positive squares in 16 ways, for example, as 5613099163204 + 14717934268816 = 2369198^2 + 3836396^2 .

It is a super-2 number, since 2×20331033432020² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331033432029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 804826190 + ... + 804851450.

It is an arithmetic number, because the mean of its divisors is an integer number (473023434555).

Almost surely, 2^{20331033432020} is an apocalyptic number.

20331033432020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20331033432020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22705124858640).

20331033432020 is an abundant number, since it is smaller than the sum of its proper divisors (25079216285260).

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

20331033432020 is a wasteful number, since it uses less digits than its factorization.

20331033432020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35853 (or 35851 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 20331033432020 its reverse (2023433013302), we get a palindrome (22354466445322).

The spelling of 20331033432020 in words is "twenty trillion, three hundred thirty-one billion, thirty-three million, four hundred thirty-two thousand, twenty".