6511650065113 has 2 divisors, whose sum is σ = 6511650065114. Its totient is φ = 6511650065112.

The previous prime is 6511650065077. The next prime is 6511650065131. The reversal of 6511650065113 is 3115600561156.

Together with next prime (6511650065131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5770334231104 + 741315834009 = 2402152^2 + 860997^2 .

It is a cyclic number.

It is not a de Polignac number, because 6511650065113 - 2²¹ = 6511647967961 is a prime.

It is a super-2 number, since 2×6511650065113² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6511650065143) 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, 3255825032556 + 3255825032557.

It is an arithmetic number, because the mean of its divisors is an integer number (3255825032557).

Almost surely, 2^{6511650065113} is an apocalyptic number.

It is an amenable number.

6511650065113 is a deficient number, since it is larger than the sum of its proper divisors (1).

6511650065113 is an equidigital number, since it uses as much as digits as its factorization.

6511650065113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81000, while the sum is 40.

The spelling of 6511650065113 in words is "six trillion, five hundred eleven billion, six hundred fifty million, sixty-five thousand, one hundred thirteen".