6555676689 has 12 divisors (see below), whose sum is σ = 9647977716. Its totient is φ = 4287989472.

The previous prime is 6555676679. The next prime is 6555676703. The reversal of 6555676689 is 9866765556.

6555676689 is a `hidden beast` number, since 6 + 5 + 5 + 567 + 6 + 68 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5262051600 + 1293625089 = 72540^2 + 35967^2 .

It is not a de Polignac number, because 6555676689 - 2⁵ = 6555676657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6555676679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6871302 + ... + 6872255.

It is an arithmetic number, because the mean of its divisors is an integer number (803998143).

Almost surely, 2^6555676689 is an apocalyptic number.

It is an amenable number.

6555676689 is a deficient number, since it is larger than the sum of its proper divisors (3092301027).

6555676689 is a wasteful number, since it uses less digits than its factorization.

6555676689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13743616 (or 13743613 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 63.

The square root of 6555676689 is about 80967.1333875666. The cubic root of 6555676689 is about 1871.5689967986.

The spelling of 6555676689 in words is "six billion, five hundred fifty-five million, six hundred seventy-six thousand, six hundred eighty-nine".