168423920075 has 6 divisors (see below), whose sum is σ = 208845660924. Its totient is φ = 134739136040.

The previous prime is 168423920011. The next prime is 168423920087. The reversal of 168423920075 is 570029324861.

It is not a de Polignac number, because 168423920075 - 2⁶ = 168423920011 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3368478377 + ... + 3368478426.

It is an arithmetic number, because the mean of its divisors is an integer number (34807610154).

It is a 1-persistent number, because it is pandigital, but 2⋅168423920075 = 336847840150 is not.

Almost surely, 2^168423920075 is an apocalyptic number.

168423920075 is a deficient number, since it is larger than the sum of its proper divisors (40421740849).

168423920075 is an equidigital number, since it uses as much as digits as its factorization.

168423920075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6736956813 (or 6736956808 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 168423920075 in words is "one hundred sixty-eight billion, four hundred twenty-three million, nine hundred twenty thousand, seventy-five".