164227717851671 has 2 divisors, whose sum is σ = 164227717851672. Its totient is φ = 164227717851670.

The previous prime is 164227717851623. The next prime is 164227717851697. The reversal of 164227717851671 is 176158717722461.

It is a strong prime.

It is an emirp because it is prime and its reverse (176158717722461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164227717851671 - 2¹⁸ = 164227717589527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164227717851598 and 164227717851607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164227717854671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82113858925835 + 82113858925836.

It is an arithmetic number, because the mean of its divisors is an integer number (82113858925836).

Almost surely, 2^{164227717851671} is an apocalyptic number.

164227717851671 is a deficient number, since it is larger than the sum of its proper divisors (1).

164227717851671 is an equidigital number, since it uses as much as digits as its factorization.

164227717851671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55319040, while the sum is 65.

The spelling of 164227717851671 in words is "one hundred sixty-four trillion, two hundred twenty-seven billion, seven hundred seventeen million, eight hundred fifty-one thousand, six hundred seventy-one".