331361224216 has 64 divisors (see below), whose sum is σ = 687646920960. Its totient is φ = 148429008000.

The previous prime is 331361224213. The next prime is 331361224217. The reversal of 331361224216 is 612422163133.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331361224213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15052930 + ... + 15074926.

It is an arithmetic number, because the mean of its divisors is an integer number (10744483140).

Almost surely, 2^331361224216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331361224216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343823460480).

331361224216 is an abundant number, since it is smaller than the sum of its proper divisors (356285696744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331361224216 is a wasteful number, since it uses less digits than its factorization.

331361224216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24496 (or 24492 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

Adding to 331361224216 its reverse (612422163133), we get a palindrome (943783387349).

The spelling of 331361224216 in words is "three hundred thirty-one billion, three hundred sixty-one million, two hundred twenty-four thousand, two hundred sixteen".