6666642844888 has 32 divisors (see below), whose sum is σ = 14253342737760. Its totient is φ = 2895917253120.

The previous prime is 6666642844867. The next prime is 6666642844999. The reversal of 6666642844888 is 8884482466666.

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, 1885361028 + ... + 1885364563.

It is an arithmetic number, because the mean of its divisors is an integer number (445416960555).

Almost surely, 2^{6666642844888} is an apocalyptic number.

6666642844888 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6666642844888 is an abundant number, since it is smaller than the sum of its proper divisors (7586699892872).

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

6666642844888 is a wasteful number, since it uses less digits than its factorization.

6666642844888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770725627 (or 3770725623 counting only the distinct ones).

The product of its digits is 4076863488, while the sum is 76.

The spelling of 6666642844888 in words is "six trillion, six hundred sixty-six billion, six hundred forty-two million, eight hundred forty-four thousand, eight hundred eighty-eight".