163418871001 has 3 divisors (see below), whose sum is σ = 163419275253. Its totient is φ = 163418466750.

The previous prime is 163418870977. The next prime is 163418871017. The reversal of 163418871001 is 100178814361.

The square root of 163418871001 is 404251.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 163418871001 - 2¹⁹ = 163418346713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163418871601) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 202126 + ... + 606376.

It is an arithmetic number, because the mean of its divisors is an integer number (54473091751).

Almost surely, 2^163418871001 is an apocalyptic number.

163418871001 is the 404251-st square number.

163418871001 is the 202126-th centered octagonal number.

It is an amenable number.

163418871001 is a deficient number, since it is larger than the sum of its proper divisors (404252).

163418871001 is an frugal number, since it uses more digits than its factorization.

163418871001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808502 (or 404251 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The spelling of 163418871001 in words is "one hundred sixty-three billion, four hundred eighteen million, eight hundred seventy-one thousand, one".