67546265161 has 2 divisors, whose sum is σ = 67546265162. Its totient is φ = 67546265160.

The previous prime is 67546265159. The next prime is 67546265173. The reversal of 67546265161 is 16156264576.

67546265161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67103793936 + 442471225 = 259044^2 + 21035^2 .

It is a cyclic number.

It is not a de Polignac number, because 67546265161 - 2¹ = 67546265159 is a prime.

Together with 67546265159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (67546265561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33773132580 + 33773132581.

It is an arithmetic number, because the mean of its divisors is an integer number (33773132581).

Almost surely, 2^67546265161 is an apocalyptic number.

It is an amenable number.

67546265161 is a deficient number, since it is larger than the sum of its proper divisors (1).

67546265161 is an equidigital number, since it uses as much as digits as its factorization.

67546265161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1814400, while the sum is 49.

The spelling of 67546265161 in words is "sixty-seven billion, five hundred forty-six million, two hundred sixty-five thousand, one hundred sixty-one".