14065816528861 has 2 divisors, whose sum is σ = 14065816528862. Its totient is φ = 14065816528860.

The previous prime is 14065816528859. The next prime is 14065816528867. The reversal of 14065816528861 is 16882561856041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12768937423225 + 1296879105636 = 3573365^2 + 1138806^2 .

It is a cyclic number.

It is not a de Polignac number, because 14065816528861 - 2¹ = 14065816528859 is a prime.

Together with 14065816528859, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 14065816528861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14065816528867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7032908264430 + 7032908264431.

It is an arithmetic number, because the mean of its divisors is an integer number (7032908264431).

Almost surely, 2^{14065816528861} is an apocalyptic number.

It is an amenable number.

14065816528861 is a deficient number, since it is larger than the sum of its proper divisors (1).

14065816528861 is an equidigital number, since it uses as much as digits as its factorization.

14065816528861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22118400, while the sum is 61.

The spelling of 14065816528861 in words is "fourteen trillion, sixty-five billion, eight hundred sixteen million, five hundred twenty-eight thousand, eight hundred sixty-one".