6559111672 has 32 divisors (see below), whose sum is σ = 12543174000. Its totient is φ = 3214392064.

The previous prime is 6559111621. The next prime is 6559111673. The reversal of 6559111672 is 2761119556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6559111673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437403 + ... + 452149.

Almost surely, 2^6559111672 is an apocalyptic number.

It is an amenable number.

6559111672 is a deficient number, since it is larger than the sum of its proper divisors (5984062328).

6559111672 is a wasteful number, since it uses less digits than its factorization.

6559111672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15855 (or 15851 counting only the distinct ones).

The product of its digits is 113400, while the sum is 43.

The square root of 6559111672 is about 80988.3428154941. The cubic root of 6559111672 is about 1871.8958222092.

The spelling of 6559111672 in words is "six billion, five hundred fifty-nine million, one hundred eleven thousand, six hundred seventy-two".