168433335085 has 4 divisors (see below), whose sum is σ = 202120002108. Its totient is φ = 134746668064.

The previous prime is 168433335079. The next prime is 168433335113. The reversal of 168433335085 is 580533334861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580533334861 = 199 ⋅2917252939.

It can be written as a sum of positive squares in 2 ways, for example, as 40654253641 + 127779081444 = 201629^2 + 357462^2 .

It is a cyclic number.

It is not a de Polignac number, because 168433335085 - 2⁵ = 168433335053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16843333504 + ... + 16843333513.

It is an arithmetic number, because the mean of its divisors is an integer number (50530000527).

Almost surely, 2^168433335085 is an apocalyptic number.

It is an amenable number.

168433335085 is a deficient number, since it is larger than the sum of its proper divisors (33686667023).

168433335085 is an equidigital number, since it uses as much as digits as its factorization.

168433335085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33686667022.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 168433335085 in words is "one hundred sixty-eight billion, four hundred thirty-three million, three hundred thirty-five thousand, eighty-five".