67016161 has 2 divisors, whose sum is σ = 67016162. Its totient is φ = 67016160.

The previous prime is 67016149. The next prime is 67016167. The reversal of 67016161 is 16161076.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64899136 + 2117025 = 8056^2 + 1455^2 .

It is a cyclic number.

It is not a de Polignac number, because 67016161 - 2¹¹ = 67014113 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (67016167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33508080 + 33508081.

It is an arithmetic number, because the mean of its divisors is an integer number (33508081).

Almost surely, 2^67016161 is an apocalyptic number.

It is an amenable number.

67016161 is a deficient number, since it is larger than the sum of its proper divisors (1).

67016161 is an equidigital number, since it uses as much as digits as its factorization.

67016161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 67016161 is about 8186.3399025450. The cubic root of 67016161 is about 406.1874634784.

The spelling of 67016161 in words is "sixty-seven million, sixteen thousand, one hundred sixty-one".