161845266067 has 2 divisors, whose sum is σ = 161845266068. Its totient is φ = 161845266066.

The previous prime is 161845266013. The next prime is 161845266127. The reversal of 161845266067 is 760662548161.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 161845266067 - 2¹¹ = 161845264019 is a prime.

It is not a weakly prime, because it can be changed into another prime (161845260067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80922633033 + 80922633034.

It is an arithmetic number, because the mean of its divisors is an integer number (80922633034).

Almost surely, 2^161845266067 is an apocalyptic number.

161845266067 is a deficient number, since it is larger than the sum of its proper divisors (1).

161845266067 is an equidigital number, since it uses as much as digits as its factorization.

161845266067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 161845266067 in words is "one hundred sixty-one billion, eight hundred forty-five million, two hundred sixty-six thousand, sixty-seven".