163434366214649 has 2 divisors, whose sum is σ = 163434366214650. Its totient is φ = 163434366214648.

The previous prime is 163434366214591. The next prime is 163434366214723. The reversal of 163434366214649 is 946412663434361.

163434366214649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102293805121600 + 61140561093049 = 10114040^2 + 7819243^2 .

It is a cyclic number.

It is not a de Polignac number, because 163434366214649 - 2²⁰ = 163434365166073 is a prime.

It is a super-2 number, since 2×163434366214649² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 163434366214591 and 163434366214600.

It is not a weakly prime, because it can be changed into another prime (163434366214949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81717183107324 + 81717183107325.

It is an arithmetic number, because the mean of its divisors is an integer number (81717183107325).

Almost surely, 2^{163434366214649} is an apocalyptic number.

It is an amenable number.

163434366214649 is a deficient number, since it is larger than the sum of its proper divisors (1).

163434366214649 is an equidigital number, since it uses as much as digits as its factorization.

163434366214649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161243136, while the sum is 62.

The spelling of 163434366214649 in words is "one hundred sixty-three trillion, four hundred thirty-four billion, three hundred sixty-six million, two hundred fourteen thousand, six hundred forty-nine".