6771655015 has 16 divisors (see below), whose sum is σ = 8228158848. Its totient is φ = 5349277216.

The previous prime is 6771654977. The next prime is 6771655019. The reversal of 6771655015 is 5105561776.

It is a cyclic number.

It is not a de Polignac number, because 6771655015 - 2¹¹ = 6771652967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6771655019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1226892 + ... + 1232398.

It is an arithmetic number, because the mean of its divisors is an integer number (514259928).

Almost surely, 2^6771655015 is an apocalyptic number.

6771655015 is a deficient number, since it is larger than the sum of its proper divisors (1456503833).

6771655015 is a wasteful number, since it uses less digits than its factorization.

6771655015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8558.

The product of its (nonzero) digits is 220500, while the sum is 43.

The square root of 6771655015 is about 82290.0663203038. The cubic root of 6771655015 is about 1891.9004255449.

The spelling of 6771655015 in words is "six billion, seven hundred seventy-one million, six hundred fifty-five thousand, fifteen".