12646242015145 has 16 divisors (see below), whose sum is σ = 15541491176640. Its totient is φ = 9873389542464.

The previous prime is 12646242015139. The next prime is 12646242015151. The reversal of 12646242015145 is 54151024264621.

12646242015145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12646242015139) and next prime (12646242015151).

It is a cyclic number.

It is not a de Polignac number, because 12646242015145 - 2³⁹ = 12096486201257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24521430 + ... + 25031839.

It is an arithmetic number, because the mean of its divisors is an integer number (971343198540).

Almost surely, 2^{12646242015145} is an apocalyptic number.

It is an amenable number.

12646242015145 is a deficient number, since it is larger than the sum of its proper divisors (2895249161495).

12646242015145 is a wasteful number, since it uses less digits than its factorization.

12646242015145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49554504.

The product of its (nonzero) digits is 460800, while the sum is 43.

Adding to 12646242015145 its reverse (54151024264621), we get a palindrome (66797266279766).

The spelling of 12646242015145 in words is "twelve trillion, six hundred forty-six billion, two hundred forty-two million, fifteen thousand, one hundred forty-five".