331665254133161 has 8 divisors (see below), whose sum is σ = 361481314978560. Its totient is φ = 302463957429072.

The previous prime is 331665254133149. The next prime is 331665254133167. The reversal of 331665254133161 is 161331452566133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331665254133161 is a prime.

It is a super-2 number, since 2×331665254133161² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331665254133167) 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, 153691034201 + ... + 153691036358.

It is an arithmetic number, because the mean of its divisors is an integer number (45185164372320).

Almost surely, 2^{331665254133161} is an apocalyptic number.

It is an amenable number.

331665254133161 is a deficient number, since it is larger than the sum of its proper divisors (29816060845399).

331665254133161 is a wasteful number, since it uses less digits than its factorization.

331665254133161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307382070655.

The product of its digits is 3499200, while the sum is 50.

The spelling of 331665254133161 in words is "three hundred thirty-one trillion, six hundred sixty-five billion, two hundred fifty-four million, one hundred thirty-three thousand, one hundred sixty-one".