330942384001991 has 2 divisors, whose sum is σ = 330942384001992. Its totient is φ = 330942384001990.

The previous prime is 330942384001987. The next prime is 330942384002059. The reversal of 330942384001991 is 199100483249033.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 330942384001991 - 2² = 330942384001987 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330942384001291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165471192000995 + 165471192000996.

It is an arithmetic number, because the mean of its divisors is an integer number (165471192000996).

Almost surely, 2^{330942384001991} is an apocalyptic number.

330942384001991 is a deficient number, since it is larger than the sum of its proper divisors (1).

330942384001991 is an equidigital number, since it uses as much as digits as its factorization.

330942384001991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5038848, while the sum is 56.

The spelling of 330942384001991 in words is "three hundred thirty trillion, nine hundred forty-two billion, three hundred eighty-four million, one thousand, nine hundred ninety-one".