6665410369728 has 168 divisors, whose sum is σ = 20980060997376. Its totient is φ = 2006444736000.

The previous prime is 6665410369721. The next prime is 6665410369819. The reversal of 6665410369728 is 8279630145666.

It is not an unprimeable number, because it can be changed into a prime (6665410369721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2526676 + ... + 4440147.

It is a 2-persistent number, because it is pandigital, and so is 2⋅6665410369728 = 13330820739456, but 3⋅6665410369728 = 19996231109184 is not.

Almost surely, 2^{6665410369728} is an apocalyptic number.

It is an amenable number.

6665410369728 is an abundant number, since it is smaller than the sum of its proper divisors (14314650627648).

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

6665410369728 is a wasteful number, since it uses less digits than its factorization.

6665410369728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6967003 (or 6966990 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 63.

The spelling of 6665410369728 in words is "six trillion, six hundred sixty-five billion, four hundred ten million, three hundred sixty-nine thousand, seven hundred twenty-eight".