331706968625 has 16 divisors (see below), whose sum is σ = 438321493584. Its totient is φ = 249755833600.

The previous prime is 331706968601. The next prime is 331706968631. The reversal of 331706968625 is 526869607133.

It can be written as a sum of positive squares in 8 ways, for example, as 10839100321 + 320867868304 = 104111^2 + 566452^2 .

It is a de Polignac number, because none of the positive numbers 2^k-331706968625 is a prime.

It is a super-2 number, since 2×331706968625² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78046574 + ... + 78050823.

It is an arithmetic number, because the mean of its divisors is an integer number (27395093349).

Almost surely, 2^331706968625 is an apocalyptic number.

It is an amenable number.

331706968625 is a deficient number, since it is larger than the sum of its proper divisors (106614524959).

331706968625 is a wasteful number, since it uses less digits than its factorization.

331706968625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156097429 (or 156097419 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 331706968625 in words is "three hundred thirty-one billion, seven hundred six million, nine hundred sixty-eight thousand, six hundred twenty-five".