6539108556 has 24 divisors (see below), whose sum is σ = 15612756544. Its totient is φ = 2129011920.

The previous prime is 6539108551. The next prime is 6539108567. The reversal of 6539108556 is 6558019356.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6539108551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6335830 + ... + 6336861.

Almost surely, 2^6539108556 is an apocalyptic number.

It is an amenable number.

6539108556 is an abundant number, since it is smaller than the sum of its proper divisors (9073647988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6539108556 is a wasteful number, since it uses less digits than its factorization.

6539108556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12672741 (or 12672739 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The square root of 6539108556 is about 80864.7547204590. The cubic root of 6539108556 is about 1869.9909973162.

The spelling of 6539108556 in words is "six billion, five hundred thirty-nine million, one hundred eight thousand, five hundred fifty-six".