6927116180561 has 2 divisors, whose sum is σ = 6927116180562. Its totient is φ = 6927116180560.

The previous prime is 6927116180531. The next prime is 6927116180651. The reversal of 6927116180561 is 1650816117296.

Together with next prime (6927116180651) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4008981035536 + 2918135145025 = 2002244^2 + 1708255^2 .

It is a cyclic number.

It is not a de Polignac number, because 6927116180561 - 2¹⁰ = 6927116179537 is a prime.

It is a super-3 number, since 3×6927116180561³ (a number of 39 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (6927116180521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3463558090280 + 3463558090281.

It is an arithmetic number, because the mean of its divisors is an integer number (3463558090281).

Almost surely, 2^{6927116180561} is an apocalyptic number.

It is an amenable number.

6927116180561 is a deficient number, since it is larger than the sum of its proper divisors (1).

6927116180561 is an equidigital number, since it uses as much as digits as its factorization.

6927116180561 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 53.

The spelling of 6927116180561 in words is "six trillion, nine hundred twenty-seven billion, one hundred sixteen million, one hundred eighty thousand, five hundred sixty-one".