66328068082271 has 8 divisors (see below), whose sum is σ = 70229790390384. Its totient is φ = 62426353690240.

The previous prime is 66328068082201. The next prime is 66328068082273. The reversal of 66328068082271 is 17228086082366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66328068082271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66328068082271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66328068082273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30522041 + ... + 32622861.

It is an arithmetic number, because the mean of its divisors is an integer number (8778723798798).

Almost surely, 2^{66328068082271} is an apocalyptic number.

66328068082271 is a deficient number, since it is larger than the sum of its proper divisors (3901722308113).

66328068082271 is a wasteful number, since it uses less digits than its factorization.

66328068082271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3958041.

The product of its (nonzero) digits is 18579456, while the sum is 59.

The spelling of 66328068082271 in words is "sixty-six trillion, three hundred twenty-eight billion, sixty-eight million, eighty-two thousand, two hundred seventy-one".