66163407317 has 8 divisors (see below), whose sum is σ = 75617510016. Its totient is φ = 56709851472.

The previous prime is 66163407311. The next prime is 66163407371. The reversal of 66163407317 is 71370436166.

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

It is a cyclic number.

It is not a de Polignac number, because 66163407317 - 2¹² = 66163403221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66163407311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167768 + ... + 400590.

It is an arithmetic number, because the mean of its divisors is an integer number (9452188752).

Almost surely, 2^66163407317 is an apocalyptic number.

It is an amenable number.

66163407317 is a deficient number, since it is larger than the sum of its proper divisors (9454102699).

66163407317 is a wasteful number, since it uses less digits than its factorization.

66163407317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273427.

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 66163407317 in words is "sixty-six billion, one hundred sixty-three million, four hundred seven thousand, three hundred seventeen".