6645203476224 has 288 divisors, whose sum is σ = 18976552741440. Its totient is φ = 2060255232000.

The previous prime is 6645203476213. The next prime is 6645203476271. The reversal of 6645203476224 is 4226743025466.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83190544 + ... + 83270384.

It is an arithmetic number, because the mean of its divisors is an integer number (65890808130).

Almost surely, 2^{6645203476224} is an apocalyptic number.

6645203476224 is a gapful number since it is divisible by the number (64) 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 6645203476224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9488276370720).

6645203476224 is an abundant number, since it is smaller than the sum of its proper divisors (12331349265216).

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

6645203476224 is a wasteful number, since it uses less digits than its factorization.

6645203476224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80027 (or 80013 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 51.

The spelling of 6645203476224 in words is "six trillion, six hundred forty-five billion, two hundred three million, four hundred seventy-six thousand, two hundred twenty-four".