163506544131063 has 16 divisors (see below), whose sum is σ = 249153409161216. Its totient is φ = 93432093428640.

The previous prime is 163506544131043. The next prime is 163506544131071. The reversal of 163506544131063 is 360131445605361.

It is not a de Polignac number, because 163506544131063 - 2¹³ = 163506544122871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163506544131013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402970 + ... + 18087992.

It is an arithmetic number, because the mean of its divisors is an integer number (15572088072576).

Almost surely, 2^{163506544131063} is an apocalyptic number.

163506544131063 is a deficient number, since it is larger than the sum of its proper divisors (85646865030153).

163506544131063 is a wasteful number, since it uses less digits than its factorization.

163506544131063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18125294.

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 163506544131063 in words is "one hundred sixty-three trillion, five hundred six billion, five hundred forty-four million, one hundred thirty-one thousand, sixty-three".