331661484523 has 2 divisors, whose sum is σ = 331661484524. Its totient is φ = 331661484522.

The previous prime is 331661484521. The next prime is 331661484599. The reversal of 331661484523 is 325484166133.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 331661484523 - 2¹ = 331661484521 is a prime.

Together with 331661484521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (331661484521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165830742261 + 165830742262.

It is an arithmetic number, because the mean of its divisors is an integer number (165830742262).

Almost surely, 2^331661484523 is an apocalyptic number.

331661484523 is a deficient number, since it is larger than the sum of its proper divisors (1).

331661484523 is an equidigital number, since it uses as much as digits as its factorization.

331661484523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 46.

The spelling of 331661484523 in words is "three hundred thirty-one billion, six hundred sixty-one million, four hundred eighty-four thousand, five hundred twenty-three".