12525252525216 has 144 divisors (see below), whose sum is σ = 35852765719680. Its totient is φ = 4147668633600.

The previous prime is 12525252525211. The next prime is 12525252525217. The reversal of 12525252525216 is 61252525252521.

12525252525216 is a `hidden beast` number, since 1 + 2 + 5 + 2 + 52 + 52 + 525 + 21 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12525252525211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110308600 + ... + 110422088.

It is an arithmetic number, because the mean of its divisors is an integer number (248977539720).

Almost surely, 2^{12525252525216} is an apocalyptic number.

12525252525216 is a gapful number since it is divisible by the number (16) 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 12525252525216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17926382859840).

12525252525216 is an abundant number, since it is smaller than the sum of its proper divisors (23327513194464).

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

12525252525216 is a wasteful number, since it uses less digits than its factorization.

12525252525216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116019 (or 116008 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 45.

Adding to 12525252525216 its reverse (61252525252521), we get a palindrome (73777777777737).

The spelling of 12525252525216 in words is "twelve trillion, five hundred twenty-five billion, two hundred fifty-two million, five hundred twenty-five thousand, two hundred sixteen".