161603463571339 has 2 divisors, whose sum is σ = 161603463571340. Its totient is φ = 161603463571338.

The previous prime is 161603463571331. The next prime is 161603463571441. The reversal of 161603463571339 is 933175364306161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161603463571339 - 2³ = 161603463571331 is a prime.

It is a super-2 number, since 2×161603463571339² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (161603463571331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80801731785669 + 80801731785670.

It is an arithmetic number, because the mean of its divisors is an integer number (80801731785670).

Almost surely, 2^{161603463571339} is an apocalyptic number.

161603463571339 is a deficient number, since it is larger than the sum of its proper divisors (1).

161603463571339 is an equidigital number, since it uses as much as digits as its factorization.

161603463571339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22044960, while the sum is 58.

The spelling of 161603463571339 in words is "one hundred sixty-one trillion, six hundred three billion, four hundred sixty-three million, five hundred seventy-one thousand, three hundred thirty-nine".