168201945173 has 16 divisors (see below), whose sum is σ = 185880272256. Its totient is φ = 151391539200.

The previous prime is 168201945161. The next prime is 168201945199. The reversal of 168201945173 is 371549102861.

It is a cyclic number.

It is not a de Polignac number, because 168201945173 - 2¹⁸ = 168201683029 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 (168201945103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1832390 + ... + 1921992.

It is an arithmetic number, because the mean of its divisors is an integer number (11617517016).

It is a 1-persistent number, because it is pandigital, but 2⋅168201945173 = 336403890346 is not.

Almost surely, 2^168201945173 is an apocalyptic number.

It is an amenable number.

168201945173 is a deficient number, since it is larger than the sum of its proper divisors (17678327083).

168201945173 is a wasteful number, since it uses less digits than its factorization.

168201945173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94444.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 168201945173 in words is "one hundred sixty-eight billion, two hundred one million, nine hundred forty-five thousand, one hundred seventy-three".