6664601938176 has 864 divisors, whose sum is σ = 25849472882688. Its totient is φ = 1600912097280.

The previous prime is 6664601938171. The next prime is 6664601938213. The reversal of 6664601938176 is 6718391064666.

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

It is not an unprimeable number, because it can be changed into a prime (6664601938171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 110462770 + ... + 110523086.

It is an arithmetic number, because the mean of its divisors is an integer number (29918371392).

Almost surely, 2^{6664601938176} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6664601938176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12924736441344).

6664601938176 is an abundant number, since it is smaller than the sum of its proper divisors (19184870944512).

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

6664601938176 is a wasteful number, since it uses less digits than its factorization.

6664601938176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60407 (or 60390 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 63.

The spelling of 6664601938176 in words is "six trillion, six hundred sixty-four billion, six hundred one million, nine hundred thirty-eight thousand, one hundred seventy-six".