20333226320 has 80 divisors (see below), whose sum is σ = 51609018240. Its totient is φ = 7388659200.

The previous prime is 20333226317. The next prime is 20333226323. The reversal of 20333226320 is 2362233302.

It is an interprime number because it is at equal distance from previous prime (20333226317) and next prime (20333226323).

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 20333226320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333226323) 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, 1364510 + ... + 1379330.

It is an arithmetic number, because the mean of its divisors is an integer number (645112728).

Almost surely, 2^20333226320 is an apocalyptic number.

20333226320 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 20333226320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25804509120).

20333226320 is an abundant number, since it is smaller than the sum of its proper divisors (31275791920).

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

20333226320 is a wasteful number, since it uses less digits than its factorization.

20333226320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16404 (or 16398 counting only the distinct ones).

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

Adding to 20333226320 its reverse (2362233302), we get a palindrome (22695459622).

The spelling of 20333226320 in words is "twenty billion, three hundred thirty-three million, two hundred twenty-six thousand, three hundred twenty".