312161016336511 has 2 divisors, whose sum is σ = 312161016336512. Its totient is φ = 312161016336510.

The previous prime is 312161016336503. The next prime is 312161016336529. The reversal of 312161016336511 is 115633610161213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312161016336511 - 2³ = 312161016336503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312161016316511) 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, 156080508168255 + 156080508168256.

It is an arithmetic number, because the mean of its divisors is an integer number (156080508168256).

Almost surely, 2^{312161016336511} is an apocalyptic number.

312161016336511 is a deficient number, since it is larger than the sum of its proper divisors (1).

312161016336511 is an equidigital number, since it uses as much as digits as its factorization.

312161016336511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

Adding to 312161016336511 its reverse (115633610161213), we get a palindrome (427794626497724).

The spelling of 312161016336511 in words is "three hundred twelve trillion, one hundred sixty-one billion, sixteen million, three hundred thirty-six thousand, five hundred eleven".