329665359065 has 24 divisors (see below), whose sum is σ = 480271762752. Its totient is φ = 212758813440.

The previous prime is 329665359061. The next prime is 329665359073. The reversal of 329665359065 is 560953566923.

It is a happy number.

It is not a de Polignac number, because 329665359065 - 2² = 329665359061 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 329665358995 and 329665359013.

It is not an unprimeable number, because it can be changed into a prime (329665359061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16285751 + ... + 16305980.

It is an arithmetic number, because the mean of its divisors is an integer number (20011323448).

Almost surely, 2^329665359065 is an apocalyptic number.

329665359065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

329665359065 is a deficient number, since it is larger than the sum of its proper divisors (150606403687).

329665359065 is a wasteful number, since it uses less digits than its factorization.

329665359065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32591777 (or 32591760 counting only the distinct ones).

The product of its (nonzero) digits is 39366000, while the sum is 59.

The spelling of 329665359065 in words is "three hundred twenty-nine billion, six hundred sixty-five million, three hundred fifty-nine thousand, sixty-five".