12557016828911 has 2 divisors, whose sum is σ = 12557016828912. Its totient is φ = 12557016828910.

The previous prime is 12557016828871. The next prime is 12557016829069. The reversal of 12557016828911 is 11982861075521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12557016828911 - 2³⁰ = 12555943087087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12557016821911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6278508414455 + 6278508414456.

It is an arithmetic number, because the mean of its divisors is an integer number (6278508414456).

Almost surely, 2^{12557016828911} is an apocalyptic number.

12557016828911 is a deficient number, since it is larger than the sum of its proper divisors (1).

12557016828911 is an equidigital number, since it uses as much as digits as its factorization.

12557016828911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2419200, while the sum is 56.

The spelling of 12557016828911 in words is "twelve trillion, five hundred fifty-seven billion, sixteen million, eight hundred twenty-eight thousand, nine hundred eleven".