12515441205452 has 12 divisors (see below), whose sum is σ = 21910900125240. Its totient is φ = 6255184026816.

The previous prime is 12515441205439. The next prime is 12515441205539. The reversal of 12515441205452 is 25450214451521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634132877 + ... + 634152612.

It is an arithmetic number, because the mean of its divisors is an integer number (1825908343770).

Almost surely, 2^{12515441205452} is an apocalyptic number.

It is an amenable number.

12515441205452 is a deficient number, since it is larger than the sum of its proper divisors (9395458919788).

12515441205452 is a wasteful number, since it uses less digits than its factorization.

12515441205452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268287960 (or 1268287958 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 41.

Adding to 12515441205452 its reverse (25450214451521), we get a palindrome (37965655656973).

The spelling of 12515441205452 in words is "twelve trillion, five hundred fifteen billion, four hundred forty-one million, two hundred five thousand, four hundred fifty-two".