331666333545525 has 48 divisors (see below), whose sum is σ = 598301969318400. Its totient is φ = 160781975870400.

The previous prime is 331666333545497. The next prime is 331666333545539. The reversal of 331666333545525 is 525545333666133.

It is not a de Polignac number, because 331666333545525 - 2¹⁵ = 331666333512757 is a prime.

It is a super-2 number, since 2×331666333545525² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27312007 + ... + 37540356.

It is an arithmetic number, because the mean of its divisors is an integer number (12464624360800).

Almost surely, 2^{331666333545525} is an apocalyptic number.

It is an amenable number.

331666333545525 is a deficient number, since it is larger than the sum of its proper divisors (266635635772875).

331666333545525 is a wasteful number, since it uses less digits than its factorization.

331666333545525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64858586 (or 64858581 counting only the distinct ones).

The product of its digits is 262440000, while the sum is 60.

The spelling of 331666333545525 in words is "three hundred thirty-one trillion, six hundred sixty-six billion, three hundred thirty-three million, five hundred forty-five thousand, five hundred twenty-five".