6555444445554 has 16 divisors (see below), whose sum is σ = 13110952772448. Its totient is φ = 2185137501632.

The previous prime is 6555444445541. The next prime is 6555444445573. The reversal of 6555444445554 is 4555444445556.

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, 1271847 + ... + 3837770.

It is an arithmetic number, because the mean of its divisors is an integer number (819434548278).

Almost surely, 2^{6555444445554} is an apocalyptic number.

6555444445554 is an abundant number, since it is smaller than the sum of its proper divisors (6555508326894).

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

6555444445554 is a wasteful number, since it uses less digits than its factorization.

6555444445554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5323449.

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

The spelling of 6555444445554 in words is "six trillion, five hundred fifty-five billion, four hundred forty-four million, four hundred forty-five thousand, five hundred fifty-four".