331325641845 has 72 divisors (see below), whose sum is σ = 633655870848. Its totient is φ = 160031234880.

The previous prime is 331325641837. The next prime is 331325641859. The reversal of 331325641845 is 548146523133.

331325641845 is a `hidden beast` number, since 3 + 3 + 1 + 3 + 2 + 564 + 1 + 84 + 5 = 666.

It is not a de Polignac number, because 331325641845 - 2³ = 331325641837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 331325641845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1316352 + ... + 1547718.

It is an arithmetic number, because the mean of its divisors is an integer number (8800775984).

Almost surely, 2^331325641845 is an apocalyptic number.

It is an amenable number.

331325641845 is a deficient number, since it is larger than the sum of its proper divisors (302330229003).

331325641845 is a wasteful number, since it uses less digits than its factorization.

331325641845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231663 (or 231649 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The spelling of 331325641845 in words is "three hundred thirty-one billion, three hundred twenty-five million, six hundred forty-one thousand, eight hundred forty-five".