12006400000 has 336 divisors, whose sum is σ = 34811646912. Its totient is φ = 4055040000.

The previous prime is 12006399983. The next prime is 12006400001. The reversal of 12006400000 is 460021.

It is not an unprimeable number, because it can be changed into a prime (12006400001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179199967 + ... + 179200033.

It is an arithmetic number, because the mean of its divisors is an integer number (103606092).

Almost surely, 2^12006400000 is an apocalyptic number.

12006400000 is a gapful number since it is divisible by the number (10) 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 12006400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17405823456).

12006400000 is an abundant number, since it is smaller than the sum of its proper divisors (22805246912).

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

12006400000 is an frugal number, since it uses more digits than its factorization.

12006400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12006400000 its reverse (460021), we get a palindrome (12006860021).

The spelling of 12006400000 in words is "twelve billion, six million, four hundred thousand".