6550505556711 has 4 divisors (see below), whose sum is σ = 8734007408952. Its totient is φ = 4367003704472.

The previous prime is 6550505556689. The next prime is 6550505556731. The reversal of 6550505556711 is 1176555050556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6550505556711 - 2¹⁵ = 6550505523943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6550505556731) 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 in 3 ways as a sum of consecutive naturals, for example, 1091750926116 + ... + 1091750926121.

It is an arithmetic number, because the mean of its divisors is an integer number (2183501852238).

Almost surely, 2^{6550505556711} is an apocalyptic number.

6550505556711 is a deficient number, since it is larger than the sum of its proper divisors (2183501852241).

6550505556711 is a wasteful number, since it uses less digits than its factorization.

6550505556711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183501852240.

The product of its (nonzero) digits is 3937500, while the sum is 51.

The spelling of 6550505556711 in words is "six trillion, five hundred fifty billion, five hundred five million, five hundred fifty-six thousand, seven hundred eleven".