12554043412120 has 512 divisors, whose sum is σ = 34526667571200. Its totient is φ = 4015993208832.

The previous prime is 12554043412111. The next prime is 12554043412133. The reversal of 12554043412120 is 2121434045521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14153374317 + ... + 14153375203.

It is an arithmetic number, because the mean of its divisors is an integer number (67434897600).

Almost surely, 2^{12554043412120} is an apocalyptic number.

12554043412120 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 12554043412120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17263333785600).

12554043412120 is an abundant number, since it is smaller than the sum of its proper divisors (21972624159080).

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

12554043412120 is a wasteful number, since it uses less digits than its factorization.

12554043412120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1323 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 12554043412120 its reverse (2121434045521), we get a palindrome (14675477457641).

The spelling of 12554043412120 in words is "twelve trillion, five hundred fifty-four billion, forty-three million, four hundred twelve thousand, one hundred twenty".