331065216065 has 16 divisors (see below), whose sum is σ = 398288085120. Its totient is φ = 264179368320.

The previous prime is 331065216011. The next prime is 331065216073. The reversal of 331065216065 is 560612560133.

It is not a de Polignac number, because 331065216065 - 2⁸ = 331065215809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6856076 + ... + 6904194.

It is an arithmetic number, because the mean of its divisors is an integer number (24893005320).

Almost surely, 2^331065216065 is an apocalyptic number.

It is an amenable number.

331065216065 is a deficient number, since it is larger than the sum of its proper divisors (67222869055).

331065216065 is a wasteful number, since it uses less digits than its factorization.

331065216065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51592.

The product of its (nonzero) digits is 97200, while the sum is 38.

Adding to 331065216065 its reverse (560612560133), we get a palindrome (891677776198).

The spelling of 331065216065 in words is "three hundred thirty-one billion, sixty-five million, two hundred sixteen thousand, sixty-five".