164404503116543 has 2 divisors, whose sum is σ = 164404503116544. Its totient is φ = 164404503116542.

The previous prime is 164404503116521. The next prime is 164404503116563. The reversal of 164404503116543 is 345611305404461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164404503116543 - 2⁶ = 164404503116479 is a prime.

It is a super-3 number, since 3×164404503116543³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164404503116563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82202251558271 + 82202251558272.

It is an arithmetic number, because the mean of its divisors is an integer number (82202251558272).

Almost surely, 2^{164404503116543} is an apocalyptic number.

164404503116543 is a deficient number, since it is larger than the sum of its proper divisors (1).

164404503116543 is an equidigital number, since it uses as much as digits as its factorization.

164404503116543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 164404503116543 in words is "one hundred sixty-four trillion, four hundred four billion, five hundred three million, one hundred sixteen thousand, five hundred forty-three".