67018659144401 has 2 divisors, whose sum is σ = 67018659144402. Its totient is φ = 67018659144400.

The previous prime is 67018659144391. The next prime is 67018659144439. The reversal of 67018659144401 is 10444195681076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51450150111376 + 15568509033025 = 7172876^2 + 3945695^2 .

It is a cyclic number.

It is not a de Polignac number, because 67018659144401 - 2³⁸ = 66743781237457 is a prime.

It is not a weakly prime, because it can be changed into another prime (67018659144301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33509329572200 + 33509329572201.

It is an arithmetic number, because the mean of its divisors is an integer number (33509329572201).

Almost surely, 2^{67018659144401} is an apocalyptic number.

It is an amenable number.

67018659144401 is a deficient number, since it is larger than the sum of its proper divisors (1).

67018659144401 is an equidigital number, since it uses as much as digits as its factorization.

67018659144401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 56.

The spelling of 67018659144401 in words is "sixty-seven trillion, eighteen billion, six hundred fifty-nine million, one hundred forty-four thousand, four hundred one".