6666777711 has 32 divisors (see below), whose sum is σ = 10784413440. Its totient is φ = 4036788000.

The previous prime is 6666777701. The next prime is 6666777721. The reversal of 6666777711 is 1177776666.

6666777711 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6666777701) and next prime (6666777721).

It is not a de Polignac number, because 6666777711 - 2⁵ = 6666777679 is a prime.

It is a super-3 number, since 3×6666777711³ (a number of 30 digits) contains 333 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666777701) 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, 335761 + ... + 355061.

It is an arithmetic number, because the mean of its divisors is an integer number (337012920).

Almost surely, 2^6666777711 is an apocalyptic number.

6666777711 is a deficient number, since it is larger than the sum of its proper divisors (4117635729).

6666777711 is a wasteful number, since it uses less digits than its factorization.

6666777711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20484 (or 20478 counting only the distinct ones).

The product of its digits is 3111696, while the sum is 54.

The square root of 6666777711 is about 81650.3380948297. The cubic root of 6666777711 is about 1882.0825073759.

The spelling of 6666777711 in words is "six billion, six hundred sixty-six million, seven hundred seventy-seven thousand, seven hundred eleven".