6555444445494 has 32 divisors (see below), whose sum is σ = 16648747799040. Its totient is φ = 1872984127176.

The previous prime is 6555444445493. The next prime is 6555444445531. The reversal of 6555444445494 is 4945444445556.

It is a happy number.

6555444445494 is a `hidden beast` number, since 6 + 5 + 5 + 5 + 4 + 44 + 44 + 549 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6555444445493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8671222434 + ... + 8671223189.

It is an arithmetic number, because the mean of its divisors is an integer number (520273368720).

Almost surely, 2^{6555444445494} is an apocalyptic number.

6555444445494 is an abundant number, since it is smaller than the sum of its proper divisors (10093303353546).

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

6555444445494 is a wasteful number, since it uses less digits than its factorization.

6555444445494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17342445641 (or 17342445635 counting only the distinct ones).

The product of its digits is 552960000, while the sum is 63.

The spelling of 6555444445494 in words is "six trillion, five hundred fifty-five billion, four hundred forty-four million, four hundred forty-five thousand, four hundred ninety-four".