67307255161 has 2 divisors, whose sum is σ = 67307255162. Its totient is φ = 67307255160.

The previous prime is 67307255153. The next prime is 67307255189. The reversal of 67307255161 is 16155270376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66909651561 + 397603600 = 258669^2 + 19940^2 .

It is a cyclic number.

It is not a de Polignac number, because 67307255161 - 2³ = 67307255153 is a prime.

It is a super-2 number, since 2×67307255161² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67307255101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33653627580 + 33653627581.

It is an arithmetic number, because the mean of its divisors is an integer number (33653627581).

Almost surely, 2^67307255161 is an apocalyptic number.

It is an amenable number.

67307255161 is a deficient number, since it is larger than the sum of its proper divisors (1).

67307255161 is an equidigital number, since it uses as much as digits as its factorization.

67307255161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 43.

The spelling of 67307255161 in words is "sixty-seven billion, three hundred seven million, two hundred fifty-five thousand, one hundred sixty-one".