6511166648613 has 32 divisors (see below), whose sum is σ = 10524670740480. Its totient is φ = 3945571683120.

The previous prime is 6511166648587. The next prime is 6511166648639. The reversal of 6511166648613 is 3168466611156.

It is an interprime number because it is at equal distance from previous prime (6511166648587) and next prime (6511166648639).

It is not a de Polignac number, because 6511166648613 - 2¹³ = 6511166640421 is a prime.

It is a super-2 number, since 2×6511166648613² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6511166648613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6511166648653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355470 + ... + 3626112.

It is an arithmetic number, because the mean of its divisors is an integer number (328895960640).

Almost surely, 2^{6511166648613} is an apocalyptic number.

It is an amenable number.

6511166648613 is a deficient number, since it is larger than the sum of its proper divisors (4013504091867).

6511166648613 is a wasteful number, since it uses less digits than its factorization.

6511166648613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3277366 (or 3277360 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 6511166648613 in words is "six trillion, five hundred eleven billion, one hundred sixty-six million, six hundred forty-eight thousand, six hundred thirteen".