168425085085 has 4 divisors (see below), whose sum is σ = 202110102108. Its totient is φ = 134740068064.

The previous prime is 168425085043. The next prime is 168425085107. The reversal of 168425085085 is 580580524861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84516955524 + 83908129561 = 290718^2 + 289669^2 .

It is a cyclic number.

It is not a de Polignac number, because 168425085085 - 2⁷ = 168425084957 is a prime.

It is a super-3 number, since 3×168425085085³ (a number of 35 digits) contains 333 as substring.

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, 16842508504 + ... + 16842508513.

It is an arithmetic number, because the mean of its divisors is an integer number (50527525527).

Almost surely, 2^168425085085 is an apocalyptic number.

It is an amenable number.

168425085085 is a deficient number, since it is larger than the sum of its proper divisors (33685017023).

168425085085 is an equidigital number, since it uses as much as digits as its factorization.

168425085085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33685017022.

The product of its (nonzero) digits is 3072000, while the sum is 52.

The spelling of 168425085085 in words is "one hundred sixty-eight billion, four hundred twenty-five million, eighty-five thousand, eighty-five".