6655011666600 has 192 divisors, whose sum is σ = 22535323272000. Its totient is φ = 1611236966400.

The previous prime is 6655011666503. The next prime is 6655011666601. The reversal of 6655011666600 is 66661105566.

It is a self number, because there is not a number n which added to its sum of digits gives 6655011666600.

It is not an unprimeable number, because it can be changed into a prime (6655011666601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4419786 + ... + 5731014.

It is an arithmetic number, because the mean of its divisors is an integer number (117371475375).

Almost surely, 2^{6655011666600} is an apocalyptic number.

6655011666600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6655011666600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11267661636000).

6655011666600 is an abundant number, since it is smaller than the sum of its proper divisors (15880311605400).

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

6655011666600 is a wasteful number, since it uses less digits than its factorization.

6655011666600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312028 (or 1312019 counting only the distinct ones).

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

The spelling of 6655011666600 in words is "six trillion, six hundred fifty-five billion, eleven million, six hundred sixty-six thousand, six hundred".