6711556911 has 4 divisors (see below), whose sum is σ = 8948742552. Its totient is φ = 4474371272.

The previous prime is 6711556867. The next prime is 6711556919. The reversal of 6711556911 is 1196551176.

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 6711556911 - 2⁶ = 6711556847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6711556919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1118592816 + ... + 1118592821.

It is an arithmetic number, because the mean of its divisors is an integer number (2237185638).

Almost surely, 2^6711556911 is an apocalyptic number.

6711556911 is a deficient number, since it is larger than the sum of its proper divisors (2237185641).

6711556911 is a wasteful number, since it uses less digits than its factorization.

6711556911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237185640.

The product of its digits is 56700, while the sum is 42.

The square root of 6711556911 is about 81924.0923721465. The cubic root of 6711556911 is about 1886.2869452304.

The spelling of 6711556911 in words is "six billion, seven hundred eleven million, five hundred fifty-six thousand, nine hundred eleven".