163501046664413 has 2 divisors, whose sum is σ = 163501046664414. Its totient is φ = 163501046664412.

The previous prime is 163501046664341. The next prime is 163501046664479. The reversal of 163501046664413 is 314466640105361.

163501046664413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (163501046664341) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152794395166009 + 10706651498404 = 12361003^2 + 3272102^2 .

It is a cyclic number.

It is not a de Polignac number, because 163501046664413 - 2²⁰ = 163501045615837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163501046664493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81750523332206 + 81750523332207.

It is an arithmetic number, because the mean of its divisors is an integer number (81750523332207).

Almost surely, 2^{163501046664413} is an apocalyptic number.

It is an amenable number.

163501046664413 is a deficient number, since it is larger than the sum of its proper divisors (1).

163501046664413 is an equidigital number, since it uses as much as digits as its factorization.

163501046664413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3732480, while the sum is 50.

Adding to 163501046664413 its reverse (314466640105361), we get a palindrome (477967686769774).

The spelling of 163501046664413 in words is "one hundred sixty-three trillion, five hundred one billion, forty-six million, six hundred sixty-four thousand, four hundred thirteen".