163331333273 has 8 divisors (see below), whose sum is σ = 163537780680. Its totient is φ = 163124953600.

The previous prime is 163331333261. The next prime is 163331333293. The reversal of 163331333273 is 372333133361.

It can be written as a sum of positive squares in 4 ways, for example, as 5426826889 + 157904506384 = 73667^2 + 397372^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163331333273 - 2³⁰ = 162257591449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163331333293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6212111 + ... + 6238347.

It is an arithmetic number, because the mean of its divisors is an integer number (20442222585).

Almost surely, 2^163331333273 is an apocalyptic number.

It is an amenable number.

163331333273 is a deficient number, since it is larger than the sum of its proper divisors (206447407).

163331333273 is an equidigital number, since it uses as much as digits as its factorization.

163331333273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33867.

The product of its digits is 183708, while the sum is 38.

The spelling of 163331333273 in words is "one hundred sixty-three billion, three hundred thirty-one million, three hundred thirty-three thousand, two hundred seventy-three".