163805441206 has 16 divisors (see below), whose sum is σ = 273102727248. Its totient is φ = 73052168800.

The previous prime is 163805441203. The next prime is 163805441207. The reversal of 163805441206 is 602144508361.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163805441203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70241305 + ... + 70243636.

It is an arithmetic number, because the mean of its divisors is an integer number (17068920453).

Almost surely, 2^163805441206 is an apocalyptic number.

163805441206 is a deficient number, since it is larger than the sum of its proper divisors (109297286042).

163805441206 is a wasteful number, since it uses less digits than its factorization.

163805441206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140485007.

The product of its (nonzero) digits is 138240, while the sum is 40.

Adding to 163805441206 its reverse (602144508361), we get a palindrome (765949949567).

The spelling of 163805441206 in words is "one hundred sixty-three billion, eight hundred five million, four hundred forty-one thousand, two hundred six".