66075325062173 has 12 divisors (see below), whose sum is σ = 77416105425120. Its totient is φ = 56228539718232.

The previous prime is 66075325062157. The next prime is 66075325062223. The reversal of 66075325062173 is 37126052357066.

It is not a de Polignac number, because 66075325062173 - 2⁴ = 66075325062157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66075325062113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4850626361 + ... + 4850639982.

It is an arithmetic number, because the mean of its divisors is an integer number (6451342118760).

Almost surely, 2^{66075325062173} is an apocalyptic number.

It is an amenable number.

66075325062173 is a deficient number, since it is larger than the sum of its proper divisors (11340780362947).

66075325062173 is a wasteful number, since it uses less digits than its factorization.

66075325062173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9701266496 (or 9701266489 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 53.

The spelling of 66075325062173 in words is "sixty-six trillion, seventy-five billion, three hundred twenty-five million, sixty-two thousand, one hundred seventy-three".