6600646030272 has 448 divisors, whose sum is σ = 21023045600256. Its totient is φ = 1788082421760.

The previous prime is 6600646030259. The next prime is 6600646030273. The reversal of 6600646030272 is 2720306460066.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6600646030273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2664773098 + ... + 2664775574.

It is an arithmetic number, because the mean of its divisors is an integer number (46926441072).

Almost surely, 2^{6600646030272} 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 6600646030272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10511522800128).

6600646030272 is an abundant number, since it is smaller than the sum of its proper divisors (14422399569984).

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

6600646030272 is a wasteful number, since it uses less digits than its factorization.

6600646030272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3884 (or 3874 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The spelling of 6600646030272 in words is "six trillion, six hundred billion, six hundred forty-six million, thirty thousand, two hundred seventy-two".