331610165872165 has 8 divisors (see below), whose sum is σ = 398695984460568. Its totient is φ = 264778942421760.

The previous prime is 331610165872133. The next prime is 331610165872177. The reversal of 331610165872165 is 561278561016133.

It can be written as a sum of positive squares in 4 ways, for example, as 311487201 + 331609854384964 = 17649^2 + 18210158^2 .

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

It is not a de Polignac number, because 331610165872165 - 2⁵ = 331610165872133 is a prime.

It is a Duffinian number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 63648781632 + ... + 63648786841.

It is an arithmetic number, because the mean of its divisors is an integer number (49836998057571).

Almost surely, 2^{331610165872165} is an apocalyptic number.

It is an amenable number.

331610165872165 is a deficient number, since it is larger than the sum of its proper divisors (67085818588403).

331610165872165 is a wasteful number, since it uses less digits than its factorization.

331610165872165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127297568999.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 331610165872165 in words is "three hundred thirty-one trillion, six hundred ten billion, one hundred sixty-five million, eight hundred seventy-two thousand, one hundred sixty-five".