20344330320 has 160 divisors (see below), whose sum is σ = 65233920000. Its totient is φ = 5239503360.

The previous prime is 20344330291. The next prime is 20344330343. The reversal of 20344330320 is 2303344302.

It is a super-3 number, since 3×20344330320³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4067181 + ... + 4072179.

It is an arithmetic number, because the mean of its divisors is an integer number (407712000).

Almost surely, 2^20344330320 is an apocalyptic number.

20344330320 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 20344330320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32616960000).

20344330320 is an abundant number, since it is smaller than the sum of its proper divisors (44889589680).

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

20344330320 is a wasteful number, since it uses less digits than its factorization.

20344330320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593 (or 5587 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 24.

Adding to 20344330320 its reverse (2303344302), we get a palindrome (22647674622).

The spelling of 20344330320 in words is "twenty billion, three hundred forty-four million, three hundred thirty thousand, three hundred twenty".