66745050810339 has 32 divisors (see below), whose sum is σ = 97221833337600. Its totient is φ = 40394034432000.

The previous prime is 66745050810289. The next prime is 66745050810359. The reversal of 66745050810339 is 93301805054766.

It is not a de Polignac number, because 66745050810339 - 2²⁴ = 66745034033123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66745050810359) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66840859 + ... + 67832075.

It is an arithmetic number, because the mean of its divisors is an integer number (3038182291800).

Almost surely, 2^{66745050810339} is an apocalyptic number.

66745050810339 is a deficient number, since it is larger than the sum of its proper divisors (30476782527261).

66745050810339 is a wasteful number, since it uses less digits than its factorization.

66745050810339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994131.

The product of its (nonzero) digits is 16329600, while the sum is 57.

The spelling of 66745050810339 in words is "sixty-six trillion, seven hundred forty-five billion, fifty million, eight hundred ten thousand, three hundred thirty-nine".