67020660191 has 2 divisors, whose sum is σ = 67020660192. Its totient is φ = 67020660190.

The previous prime is 67020660151. The next prime is 67020660199. The reversal of 67020660191 is 19106602076.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67020660191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67020660199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33510330095 + 33510330096.

It is an arithmetic number, because the mean of its divisors is an integer number (33510330096).

Almost surely, 2^67020660191 is an apocalyptic number.

67020660191 is a deficient number, since it is larger than the sum of its proper divisors (1).

67020660191 is an equidigital number, since it uses as much as digits as its factorization.

67020660191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 67020660191 in words is "sixty-seven billion, twenty million, six hundred sixty thousand, one hundred ninety-one".