2043320334400 has 168 divisors, whose sum is σ = 5110030756296. Its totient is φ = 804071424000.

The previous prime is 2043320334383. The next prime is 2043320334437. The reversal of 2043320334400 is 44330233402.

It can be written as a sum of positive squares in 12 ways, for example, as 276356284416 + 1766964049984 = 525696^2 + 1329272^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25330932 + ... + 25411468.

Almost surely, 2^{2043320334400} is an apocalyptic number.

2043320334400 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 2043320334400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2555015378148).

2043320334400 is an abundant number, since it is smaller than the sum of its proper divisors (3066710421896).

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

2043320334400 is a wasteful number, since it uses less digits than its factorization.

2043320334400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80817 (or 80802 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 2043320334400 its reverse (44330233402), we get a palindrome (2087650567802).

The spelling of 2043320334400 in words is "two trillion, forty-three billion, three hundred twenty million, three hundred thirty-four thousand, four hundred".