331320260808 has 144 divisors (see below), whose sum is σ = 912539382300. Its totient is φ = 108597116160.

The previous prime is 331320260807. The next prime is 331320260857. The reversal of 331320260808 is 808062023133.

331320260808 is a `hidden beast` number, since 3 + 313 + 2 + 0 + 260 + 80 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 288414109764 + 42906151044 = 537042^2 + 207138^2 .

It is a super-2 number, since 2×331320260808² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (331320260807) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 120874318 + ... + 120877058.

Almost surely, 2^331320260808 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 331320260808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456269691150).

331320260808 is an abundant number, since it is smaller than the sum of its proper divisors (581219121492).

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

331320260808 is a wasteful number, since it uses less digits than its factorization.

331320260808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3180 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 331320260808 in words is "three hundred thirty-one billion, three hundred twenty million, two hundred sixty thousand, eight hundred eight".