331613361156 has 192 divisors, whose sum is σ = 974636974080. Its totient is φ = 85248858240.

The previous prime is 331613361139. The next prime is 331613361161. The reversal of 331613361156 is 651163316133.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51981975 + ... + 51988353.

It is an arithmetic number, because the mean of its divisors is an integer number (5076234240).

Almost surely, 2^331613361156 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 331613361156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487318487040).

331613361156 is an abundant number, since it is smaller than the sum of its proper divisors (643023612924).

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

331613361156 is a wasteful number, since it uses less digits than its factorization.

331613361156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6974 (or 6972 counting only the distinct ones).

The product of its digits is 87480, while the sum is 39.

Adding to 331613361156 its reverse (651163316133), we get a palindrome (982776677289).

The spelling of 331613361156 in words is "three hundred thirty-one billion, six hundred thirteen million, three hundred sixty-one thousand, one hundred fifty-six".