12021546925440 has 1536 divisors, whose sum is σ = 48672565632000. Its totient is φ = 2797296353280.

The previous prime is 12021546925411. The next prime is 12021546925547. The reversal of 12021546925440 is 4452964512021.

12021546925440 is a `hidden beast` number, since 1 + 2 + 0 + 2 + 15 + 4 + 6 + 92 + 544 + 0 = 666.

12021546925440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5977894035 + ... + 5977896045.

It is an arithmetic number, because the mean of its divisors is an integer number (31687868250).

Almost surely, 2^{12021546925440} is an apocalyptic number.

12021546925440 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 12021546925440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24336282816000).

12021546925440 is an abundant number, since it is smaller than the sum of its proper divisors (36651018706560).

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

12021546925440 is a wasteful number, since it uses less digits than its factorization.

12021546925440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 12021546925440 in words is "twelve trillion, twenty-one billion, five hundred forty-six million, nine hundred twenty-five thousand, four hundred forty".