6622301665728 has 280 divisors, whose sum is σ = 22498543422432. Its totient is φ = 1886722523136.

The previous prime is 6622301665709. The next prime is 6622301665739. The reversal of 6622301665728 is 8275661032266.

6622301665728 is a `hidden beast` number, since 6 + 6 + 2 + 2 + 3 + 0 + 1 + 66 + 572 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12551176 + ... + 13068152.

Almost surely, 2^{6622301665728} 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 6622301665728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11249271711216).

6622301665728 is an abundant number, since it is smaller than the sum of its proper divisors (15876241756704).

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

6622301665728 is a wasteful number, since it uses less digits than its factorization.

6622301665728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517361 (or 517342 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 6622301665728 in words is "six trillion, six hundred twenty-two billion, three hundred one million, six hundred sixty-five thousand, seven hundred twenty-eight".