161313443654327 has 2 divisors, whose sum is σ = 161313443654328. Its totient is φ = 161313443654326.

The previous prime is 161313443654267. The next prime is 161313443654339. The reversal of 161313443654327 is 723456344313161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161313443654327 - 2²⁰ = 161313442605751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161313443654527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80656721827163 + 80656721827164.

It is an arithmetic number, because the mean of its divisors is an integer number (80656721827164).

Almost surely, 2^{161313443654327} is an apocalyptic number.

161313443654327 is a deficient number, since it is larger than the sum of its proper divisors (1).

161313443654327 is an equidigital number, since it uses as much as digits as its factorization.

161313443654327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13063680, while the sum is 53.

Adding to 161313443654327 its reverse (723456344313161), we get a palindrome (884769787967488).

The spelling of 161313443654327 in words is "one hundred sixty-one trillion, three hundred thirteen billion, four hundred forty-three million, six hundred fifty-four thousand, three hundred twenty-seven".