163501440350406 has 16 divisors (see below), whose sum is σ = 346238344271664. Its totient is φ = 51294569521664.

The previous prime is 163501440350401. The next prime is 163501440350441. The reversal of 163501440350406 is 604053044105361.

It is a happy number.

163501440350406 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163501440350401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801477648675 + ... + 801477648878.

It is an arithmetic number, because the mean of its divisors is an integer number (21639896516979).

Almost surely, 2^{163501440350406} is an apocalyptic number.

163501440350406 is an abundant number, since it is smaller than the sum of its proper divisors (182736903921258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163501440350406 is a wasteful number, since it uses less digits than its factorization.

163501440350406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602955297575.

The product of its (nonzero) digits is 518400, while the sum is 42.

Adding to 163501440350406 its reverse (604053044105361), we get a palindrome (767554484455767).

The spelling of 163501440350406 in words is "one hundred sixty-three trillion, five hundred one billion, four hundred forty million, three hundred fifty thousand, four hundred six".