12515425216 has 112 divisors (see below), whose sum is σ = 28903168000. Its totient is φ = 5266280448.

The previous prime is 12515425189. The next prime is 12515425231. The reversal of 12515425216 is 61252451521.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7042120 + ... + 7043896.

It is an arithmetic number, because the mean of its divisors is an integer number (258064000).

Almost surely, 2^12515425216 is an apocalyptic number.

12515425216 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 12515425216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14451584000).

12515425216 is an abundant number, since it is smaller than the sum of its proper divisors (16387742784).

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

12515425216 is a wasteful number, since it uses less digits than its factorization.

12515425216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074 (or 2064 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

Adding to 12515425216 its reverse (61252451521), we get a palindrome (73767876737).

The spelling of 12515425216 in words is "twelve billion, five hundred fifteen million, four hundred twenty-five thousand, two hundred sixteen".