12915471565344 has 24 divisors (see below), whose sum is σ = 33903112859280. Its totient is φ = 4305157188416.

The previous prime is 12915471565343. The next prime is 12915471565351. The reversal of 12915471565344 is 44356517451921.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12915471565343) 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 3 ways as a sum of consecutive naturals, for example, 67268080974 + ... + 67268081165.

It is an arithmetic number, because the mean of its divisors is an integer number (1412629702470).

Almost surely, 2^{12915471565344} is an apocalyptic number.

It is an amenable number.

12915471565344 is an abundant number, since it is smaller than the sum of its proper divisors (20987641293936).

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

12915471565344 is a wasteful number, since it uses less digits than its factorization.

12915471565344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134536162152 (or 134536162144 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 57.

The spelling of 12915471565344 in words is "twelve trillion, nine hundred fifteen billion, four hundred seventy-one million, five hundred sixty-five thousand, three hundred forty-four".