163023543271 has 4 divisors (see below), whose sum is σ = 165456730552. Its totient is φ = 160590355992.

The previous prime is 163023543259. The next prime is 163023543337. The reversal of 163023543271 is 172345320361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163023543271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163023543271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163023543211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1216593540 + ... + 1216593673.

It is an arithmetic number, because the mean of its divisors is an integer number (41364182638).

Almost surely, 2^163023543271 is an apocalyptic number.

163023543271 is a deficient number, since it is larger than the sum of its proper divisors (2433187281).

163023543271 is an equidigital number, since it uses as much as digits as its factorization.

163023543271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433187280.

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 163023543271 in words is "one hundred sixty-three billion, twenty-three million, five hundred forty-three thousand, two hundred seventy-one".