331013646077 has 2 divisors, whose sum is σ = 331013646078. Its totient is φ = 331013646076.

The previous prime is 331013646037. The next prime is 331013646101. The reversal of 331013646077 is 770646310133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328840314916 + 2173331161 = 573446^2 + 46619^2 .

It is a cyclic number.

It is not a de Polignac number, because 331013646077 - 2¹⁸ = 331013383933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331013646037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165506823038 + 165506823039.

It is an arithmetic number, because the mean of its divisors is an integer number (165506823039).

Almost surely, 2^331013646077 is an apocalyptic number.

It is an amenable number.

331013646077 is a deficient number, since it is larger than the sum of its proper divisors (1).

331013646077 is an equidigital number, since it uses as much as digits as its factorization.

331013646077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 41.

The spelling of 331013646077 in words is "three hundred thirty-one billion, thirteen million, six hundred forty-six thousand, seventy-seven".