161616149327 has 2 divisors, whose sum is σ = 161616149328. Its totient is φ = 161616149326.

The previous prime is 161616149281. The next prime is 161616149339. The reversal of 161616149327 is 723941616161.

161616149327 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161616149327 - 2¹⁰ = 161616148303 is a prime.

It is a super-2 number, since 2×161616149327² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (161616149347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80808074663 + 80808074664.

It is an arithmetic number, because the mean of its divisors is an integer number (80808074664).

Almost surely, 2^161616149327 is an apocalyptic number.

161616149327 is a deficient number, since it is larger than the sum of its proper divisors (1).

161616149327 is an equidigital number, since it uses as much as digits as its factorization.

161616149327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 47.

The spelling of 161616149327 in words is "one hundred sixty-one billion, six hundred sixteen million, one hundred forty-nine thousand, three hundred twenty-seven".