6604638394800 has 240 divisors, whose sum is σ = 21850080791040. Its totient is φ = 1704060472320.

The previous prime is 6604638394759. The next prime is 6604638394811. The reversal of 6604638394800 is 84938364066.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7532089 + ... + 8363111.

It is an arithmetic number, because the mean of its divisors is an integer number (91042003296).

Almost surely, 2^{6604638394800} is an apocalyptic number.

6604638394800 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 6604638394800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10925040395520).

6604638394800 is an abundant number, since it is smaller than the sum of its proper divisors (15245442396240).

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

6604638394800 is a wasteful number, since it uses less digits than its factorization.

6604638394800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831260 (or 831249 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 57.

The spelling of 6604638394800 in words is "six trillion, six hundred four billion, six hundred thirty-eight million, three hundred ninety-four thousand, eight hundred".