331491760322 has 6 divisors (see below), whose sum is σ = 497238861843. Its totient is φ = 165745473042.

The previous prime is 331491760297. The next prime is 331491760331. The reversal of 331491760322 is 223067194133.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 165745880161 + 165745880161 = 407119^2 + 407119^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=407119.

It is a super-2 number, since 2×331491760322² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331491760322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 610679 + ... + 1017797.

Almost surely, 2^331491760322 is an apocalyptic number.

331491760322 is a deficient number, since it is larger than the sum of its proper divisors (165747101521).

331491760322 is an frugal number, since it uses more digits than its factorization.

331491760322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814240 (or 407121 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 331491760322 in words is "three hundred thirty-one billion, four hundred ninety-one million, seven hundred sixty thousand, three hundred twenty-two".