12615017664323 has 2 divisors, whose sum is σ = 12615017664324. Its totient is φ = 12615017664322.

The previous prime is 12615017664317. The next prime is 12615017664349. The reversal of 12615017664323 is 32346671051621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12615017664323 - 2²² = 12615013470019 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12615017664313) by changing a digit.

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 as a sum of consecutive naturals, namely, 6307508832161 + 6307508832162.

It is an arithmetic number, because the mean of its divisors is an integer number (6307508832162).

Almost surely, 2^{12615017664323} is an apocalyptic number.

12615017664323 is a deficient number, since it is larger than the sum of its proper divisors (1).

12615017664323 is an equidigital number, since it uses as much as digits as its factorization.

12615017664323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 12615017664323 in words is "twelve trillion, six hundred fifteen billion, seventeen million, six hundred sixty-four thousand, three hundred twenty-three".