6555555444444 has 24 divisors (see below), whose sum is σ = 15296400043008. Its totient is φ = 2185170290160.

The previous prime is 6555555444419. The next prime is 6555555444547. The reversal of 6555555444444 is 4444445555556.

It is a nialpdrome in base 10.

It is a congruent number.

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, 60339 + ... + 3621429.

It is an arithmetic number, because the mean of its divisors is an integer number (637350001792).

Almost surely, 2^{6555555444444} is an apocalyptic number.

It is an amenable number.

6555555444444 is an abundant number, since it is smaller than the sum of its proper divisors (8740844598564).

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

6555555444444 is a wasteful number, since it uses less digits than its factorization.

6555555444444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714505 (or 3714503 counting only the distinct ones).

The product of its digits is 384000000, while the sum is 60.

The spelling of 6555555444444 in words is "six trillion, five hundred fifty-five billion, five hundred fifty-five million, four hundred forty-four thousand, four hundred forty-four".