20043332012400 has 240 divisors, whose sum is σ = 66033539083008. Its totient is φ = 5193747200000.

The previous prime is 20043332012399. The next prime is 20043332012411. The reversal of 20043332012400 is 421023334002.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-3 number, since 3×20043332012400³ (a number of 41 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 (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11537677 + ... + 13160723.

Almost surely, 2^{20043332012400} is an apocalyptic number.

20043332012400 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 20043332012400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33016769541504).

20043332012400 is an abundant number, since it is smaller than the sum of its proper divisors (45990207070608).

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

20043332012400 is a wasteful number, since it uses less digits than its factorization.

20043332012400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623360 (or 1623349 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20043332012400 its reverse (421023334002), we get a palindrome (20464355346402).

The spelling of 20043332012400 in words is "twenty trillion, forty-three billion, three hundred thirty-two million, twelve thousand, four hundred".