6511066160656 has 80 divisors (see below), whose sum is σ = 13183378674048. Its totient is φ = 3109331456000.

The previous prime is 6511066160623. The next prime is 6511066160671. The reversal of 6511066160656 is 6560616601156.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 830383296 + ... + 830391136.

Almost surely, 2^{6511066160656} is an apocalyptic number.

It is an amenable number.

6511066160656 is an abundant number, since it is smaller than the sum of its proper divisors (6672312513392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6511066160656 is a wasteful number, since it uses less digits than its factorization.

6511066160656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10960 (or 10954 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 6511066160656 in words is "six trillion, five hundred eleven billion, sixty-six million, one hundred sixty thousand, six hundred fifty-six".