6511166650633 has 2 divisors, whose sum is σ = 6511166650634. Its totient is φ = 6511166650632.

The previous prime is 6511166650607. The next prime is 6511166650657. The reversal of 6511166650633 is 3360566611156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6506514319369 + 4652331264 = 2550787^2 + 68208^2 .

It is a cyclic number.

It is not a de Polignac number, because 6511166650633 - 2⁴¹ = 4312143395081 is a prime.

It is not a weakly prime, because it can be changed into another prime (6511166650603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3255583325316 + 3255583325317.

It is an arithmetic number, because the mean of its divisors is an integer number (3255583325317).

Almost surely, 2^{6511166650633} is an apocalyptic number.

It is an amenable number.

6511166650633 is a deficient number, since it is larger than the sum of its proper divisors (1).

6511166650633 is an equidigital number, since it uses as much as digits as its factorization.

6511166650633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1749600, while the sum is 49.

The spelling of 6511166650633 in words is "six trillion, five hundred eleven billion, one hundred sixty-six million, six hundred fifty thousand, six hundred thirty-three".