167562394087321 has 2 divisors, whose sum is σ = 167562394087322. Its totient is φ = 167562394087320.

The previous prime is 167562394087241. The next prime is 167562394087391. The reversal of 167562394087321 is 123780493265761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117884763375625 + 49677630711696 = 10857475^2 + 7048236^2 .

It is an emirp because it is prime and its reverse (123780493265761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 167562394087321 - 2²⁷ = 167562259869593 is a prime.

It is not a weakly prime, because it can be changed into another prime (167562394087391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83781197043660 + 83781197043661.

It is an arithmetic number, because the mean of its divisors is an integer number (83781197043661).

It is a 1-persistent number, because it is pandigital, but 2⋅167562394087321 = 335124788174642 is not.

Almost surely, 2^{167562394087321} is an apocalyptic number.

It is an amenable number.

167562394087321 is a deficient number, since it is larger than the sum of its proper divisors (1).

167562394087321 is an equidigital number, since it uses as much as digits as its factorization.

167562394087321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 64.

The spelling of 167562394087321 in words is "one hundred sixty-seven trillion, five hundred sixty-two billion, three hundred ninety-four million, eighty-seven thousand, three hundred twenty-one".