167204409193 has 2 divisors, whose sum is σ = 167204409194. Its totient is φ = 167204409192.

The previous prime is 167204409191. The next prime is 167204409223. The reversal of 167204409193 is 391904402761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111200240089 + 56004169104 = 333467^2 + 236652^2 .

It is a cyclic number.

It is not a de Polignac number, because 167204409193 - 2¹ = 167204409191 is a prime.

It is a super-2 number, since 2×167204409193² (a number of 23 digits) contains 22 as substring.

Together with 167204409191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (167204409191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83602204596 + 83602204597.

It is an arithmetic number, because the mean of its divisors is an integer number (83602204597).

Almost surely, 2^167204409193 is an apocalyptic number.

It is an amenable number.

167204409193 is a deficient number, since it is larger than the sum of its proper divisors (1).

167204409193 is an equidigital number, since it uses as much as digits as its factorization.

167204409193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 167204409193 in words is "one hundred sixty-seven billion, two hundred four million, four hundred nine thousand, one hundred ninety-three".