168717427201 has 4 divisors (see below), whose sum is σ = 170210501892. Its totient is φ = 167224352512.

The previous prime is 168717427189. The next prime is 168717427213. The reversal of 168717427201 is 102724717861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102724717861 = 43 ⋅2388946927.

It is an interprime number because it is at equal distance from previous prime (168717427189) and next prime (168717427213).

It can be written as a sum of positive squares in 2 ways, for example, as 4306640625 + 164410786576 = 65625^2 + 405476^2 .

It is a cyclic number.

It is not a de Polignac number, because 168717427201 - 2⁵ = 168717427169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168717427271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746537176 + ... + 746537401.

It is an arithmetic number, because the mean of its divisors is an integer number (42552625473).

Almost surely, 2^168717427201 is an apocalyptic number.

It is an amenable number.

168717427201 is a deficient number, since it is larger than the sum of its proper divisors (1493074691).

168717427201 is a wasteful number, since it uses less digits than its factorization.

168717427201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493074690.

The product of its (nonzero) digits is 263424, while the sum is 46.

The spelling of 168717427201 in words is "one hundred sixty-eight billion, seven hundred seventeen million, four hundred twenty-seven thousand, two hundred one".