162281323808 has 162 divisors, whose sum is σ = 350171377353. Its totient is φ = 74015943680.

The previous prime is 162281323777. The next prime is 162281323823. The reversal of 162281323808 is 808323182261.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 148523910544 + 13757413264 = 385388^2 + 117292^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=284852.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2285652413 + ... + 2285652483.

Almost surely, 2^162281323808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 162281323808

162281323808 is an abundant number, since it is smaller than the sum of its proper divisors (187890053545).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162281323808 is an frugal number, since it uses more digits than its factorization.

162281323808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 162281323808 in words is "one hundred sixty-two billion, two hundred eighty-one million, three hundred twenty-three thousand, eight hundred eight".