6666814008080 has 20 divisors (see below), whose sum is σ = 15500342568972. Its totient is φ = 2666725603200.

The previous prime is 6666814008077. The next prime is 6666814008091. The reversal of 6666814008080 is 808004186666.

It can be written as a sum of positive squares in 2 ways, for example, as 1511680086016 + 5155133922064 = 1229504^2 + 2270492^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41667587471 + ... + 41667587630.

Almost surely, 2^{6666814008080} is an apocalyptic number.

It is an amenable number.

6666814008080 is an abundant number, since it is smaller than the sum of its proper divisors (8833528560892).

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

6666814008080 is a wasteful number, since it uses less digits than its factorization.

6666814008080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83335175114 (or 83335175108 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 6666814008080 in words is "six trillion, six hundred sixty-six billion, eight hundred fourteen million, eight thousand, eighty".