331040256080 has 40 divisors (see below), whose sum is σ = 814943221992. Its totient is φ = 124626919424.

The previous prime is 331040256077. The next prime is 331040256089. The reversal of 331040256080 is 80652040133.

It can be written as a sum of positive squares in 4 ways, for example, as 68564375104 + 262475880976 = 261848^2 + 512324^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×331040256080² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331040256089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121704617 + ... + 121707336.

Almost surely, 2^331040256080 is an apocalyptic number.

It is an amenable number.

331040256080 is an abundant number, since it is smaller than the sum of its proper divisors (483902965912).

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

331040256080 is a wasteful number, since it uses less digits than its factorization.

331040256080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243411983 (or 243411977 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 331040256080 in words is "three hundred thirty-one billion, forty million, two hundred fifty-six thousand, eighty".