331468665973 has 2 divisors, whose sum is σ = 331468665974. Its totient is φ = 331468665972.

The previous prime is 331468665953. The next prime is 331468666007. The reversal of 331468665973 is 379566864133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331202552004 + 266113969 = 575502^2 + 16313^2 .

It is an emirp because it is prime and its reverse (379566864133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331468665973 - 2¹³ = 331468657781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331468665953) by changing a digit.

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 as a sum of consecutive naturals, namely, 165734332986 + 165734332987.

It is an arithmetic number, because the mean of its divisors is an integer number (165734332987).

Almost surely, 2^331468665973 is an apocalyptic number.

It is an amenable number.

331468665973 is a deficient number, since it is larger than the sum of its proper divisors (1).

331468665973 is an equidigital number, since it uses as much as digits as its factorization.

331468665973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 61.

The spelling of 331468665973 in words is "three hundred thirty-one billion, four hundred sixty-eight million, six hundred sixty-five thousand, nine hundred seventy-three".