161463081960563 has 2 divisors, whose sum is σ = 161463081960564. Its totient is φ = 161463081960562.

The previous prime is 161463081960487. The next prime is 161463081960581. The reversal of 161463081960563 is 365069180364161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161463081960563 - 2⁸ = 161463081960307 is a prime.

It is not a weakly prime, because it can be changed into another prime (161463081968563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80731540980281 + 80731540980282.

It is an arithmetic number, because the mean of its divisors is an integer number (80731540980282).

Almost surely, 2^{161463081960563} is an apocalyptic number.

161463081960563 is a deficient number, since it is larger than the sum of its proper divisors (1).

161463081960563 is an equidigital number, since it uses as much as digits as its factorization.

161463081960563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16796160, while the sum is 59.

The spelling of 161463081960563 in words is "one hundred sixty-one trillion, four hundred sixty-three billion, eighty-one million, nine hundred sixty thousand, five hundred sixty-three".