67574514242161 has 2 divisors, whose sum is σ = 67574514242162. Its totient is φ = 67574514242160.

The previous prime is 67574514242129. The next prime is 67574514242233. The reversal of 67574514242161 is 16124241547576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43336468305936 + 24238045936225 = 6583044^2 + 4923215^2 .

It is a cyclic number.

It is not a de Polignac number, because 67574514242161 - 2⁵ = 67574514242129 is a prime.

It is not a weakly prime, because it can be changed into another prime (67574514242101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33787257121080 + 33787257121081.

It is an arithmetic number, because the mean of its divisors is an integer number (33787257121081).

Almost surely, 2^{67574514242161} is an apocalyptic number.

It is an amenable number.

67574514242161 is a deficient number, since it is larger than the sum of its proper divisors (1).

67574514242161 is an equidigital number, since it uses as much as digits as its factorization.

67574514242161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11289600, while the sum is 55.

The spelling of 67574514242161 in words is "sixty-seven trillion, five hundred seventy-four billion, five hundred fourteen million, two hundred forty-two thousand, one hundred sixty-one".