161145163353211 has 2 divisors, whose sum is σ = 161145163353212. Its totient is φ = 161145163353210.

The previous prime is 161145163353089. The next prime is 161145163353233. The reversal of 161145163353211 is 112353361541161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161145163353211 - 2¹¹ = 161145163351163 is a prime.

It is not a weakly prime, because it can be changed into another prime (161145163359211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80572581676605 + 80572581676606.

It is an arithmetic number, because the mean of its divisors is an integer number (80572581676606).

Almost surely, 2^{161145163353211} is an apocalyptic number.

161145163353211 is a deficient number, since it is larger than the sum of its proper divisors (1).

161145163353211 is an equidigital number, since it uses as much as digits as its factorization.

161145163353211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 43.

The spelling of 161145163353211 in words is "one hundred sixty-one trillion, one hundred forty-five billion, one hundred sixty-three million, three hundred fifty-three thousand, two hundred eleven".