163503413611563 has 16 divisors (see below), whose sum is σ = 221262046597376. Its totient is φ = 107373582534240.

The previous prime is 163503413611529. The next prime is 163503413611589. The reversal of 163503413611563 is 365116314305361.

It is not a de Polignac number, because 163503413611563 - 2²¹ = 163503411514411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163503413612563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5322978 + ... + 18850488.

It is an arithmetic number, because the mean of its divisors is an integer number (13828877912336).

Almost surely, 2^{163503413611563} is an apocalyptic number.

163503413611563 is a deficient number, since it is larger than the sum of its proper divisors (57758632985813).

163503413611563 is a wasteful number, since it uses less digits than its factorization.

163503413611563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13587714.

The product of its (nonzero) digits is 1749600, while the sum is 48.

The spelling of 163503413611563 in words is "one hundred sixty-three trillion, five hundred three billion, four hundred thirteen million, six hundred eleven thousand, five hundred sixty-three".