163063644517 has 2 divisors, whose sum is σ = 163063644518. Its totient is φ = 163063644516.

The previous prime is 163063644449. The next prime is 163063644533. The reversal of 163063644517 is 715446360361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119720152036 + 43343492481 = 346006^2 + 208191^2 .

It is a cyclic number.

It is not a de Polignac number, because 163063644517 - 2¹⁵ = 163063611749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163063644017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81531822258 + 81531822259.

It is an arithmetic number, because the mean of its divisors is an integer number (81531822259).

Almost surely, 2^163063644517 is an apocalyptic number.

It is an amenable number.

163063644517 is a deficient number, since it is larger than the sum of its proper divisors (1).

163063644517 is an equidigital number, since it uses as much as digits as its factorization.

163063644517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 163063644517 in words is "one hundred sixty-three billion, sixty-three million, six hundred forty-four thousand, five hundred seventeen".