2126318455567 has 2 divisors, whose sum is σ = 2126318455568. Its totient is φ = 2126318455566.

The previous prime is 2126318455511. The next prime is 2126318455577. The reversal of 2126318455567 is 7655548136212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2126318455567 - 2⁷ = 2126318455439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2126318455577) 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, 1063159227783 + 1063159227784.

It is an arithmetic number, because the mean of its divisors is an integer number (1063159227784).

Almost surely, 2^{2126318455567} is an apocalyptic number.

2126318455567 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126318455567 is an equidigital number, since it uses as much as digits as its factorization.

2126318455567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096000, while the sum is 55.

The spelling of 2126318455567 in words is "two trillion, one hundred twenty-six billion, three hundred eighteen million, four hundred fifty-five thousand, five hundred sixty-seven".