67161217199 has 2 divisors, whose sum is σ = 67161217200. Its totient is φ = 67161217198.

The previous prime is 67161217171. The next prime is 67161217217. The reversal of 67161217199 is 99171216176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67161217199 - 2¹⁶ = 67161151663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67161217699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33580608599 + 33580608600.

It is an arithmetic number, because the mean of its divisors is an integer number (33580608600).

Almost surely, 2^67161217199 is an apocalyptic number.

67161217199 is a deficient number, since it is larger than the sum of its proper divisors (1).

67161217199 is an equidigital number, since it uses as much as digits as its factorization.

67161217199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 50.

The spelling of 67161217199 in words is "sixty-seven billion, one hundred sixty-one million, two hundred seventeen thousand, one hundred ninety-nine".