6666056516100 has 72 divisors (see below), whose sum is σ = 19291276216800. Its totient is φ = 1777232334080.

The previous prime is 6666056516047. The next prime is 6666056516123. The reversal of 6666056516100 is 16156506666.

It is a self number, because there is not a number n which added to its sum of digits gives 6666056516100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 995082 + ... + 3784481.

It is an arithmetic number, because the mean of its divisors is an integer number (267934391900).

Almost surely, 2^{6666056516100} is an apocalyptic number.

6666056516100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6666056516100 is an abundant number, since it is smaller than the sum of its proper divisors (12625219700700).

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

6666056516100 is a wasteful number, since it uses less digits than its factorization.

6666056516100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4784229 (or 4784222 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 6666056516100 in words is "six trillion, six hundred sixty-six billion, fifty-six million, five hundred sixteen thousand, one hundred".