6550440440556 has 24 divisors (see below), whose sum is σ = 15290531610480. Its totient is φ = 2182598635072.

The previous prime is 6550440440543. The next prime is 6550440440561.

It is a happy number.

6550440440556 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110158011 + ... + 110217458.

It is an arithmetic number, because the mean of its divisors is an integer number (637105483770).

Almost surely, 2^{6550440440556} is an apocalyptic number.

It is an amenable number.

6550440440556 is an abundant number, since it is smaller than the sum of its proper divisors (8740091169924).

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

6550440440556 is a wasteful number, since it uses less digits than its factorization.

6550440440556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220377953 (or 220377951 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 48.

It can be divided in two parts, 6550440 and 440556, that added together give a palindrome (6990996).

The spelling of 6550440440556 in words is "six trillion, five hundred fifty billion, four hundred forty million, four hundred forty thousand, five hundred fifty-six".