163454116662563 has 2 divisors, whose sum is σ = 163454116662564. Its totient is φ = 163454116662562.

The previous prime is 163454116662553. The next prime is 163454116662569. The reversal of 163454116662563 is 365266611454361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163454116662563 - 2²² = 163454112468259 is a prime.

It is not a weakly prime, because it can be changed into another prime (163454116662569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81727058331281 + 81727058331282.

It is an arithmetic number, because the mean of its divisors is an integer number (81727058331282).

Almost surely, 2^{163454116662563} is an apocalyptic number.

163454116662563 is a deficient number, since it is larger than the sum of its proper divisors (1).

163454116662563 is an equidigital number, since it uses as much as digits as its factorization.

163454116662563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55987200, while the sum is 59.

The spelling of 163454116662563 in words is "one hundred sixty-three trillion, four hundred fifty-four billion, one hundred sixteen million, six hundred sixty-two thousand, five hundred sixty-three".