163210404340 has 96 divisors (see below), whose sum is σ = 365970939264. Its totient is φ = 60925562880.

The previous prime is 163210404317. The next prime is 163210404347. The reversal of 163210404340 is 43404012361.

It is a junction number, because it is equal to n+sod(n) for n = 163210404299 and 163210404308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163210404347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59760775 + ... + 59763505.

It is an arithmetic number, because the mean of its divisors is an integer number (3812197284).

Almost surely, 2^163210404340 is an apocalyptic number.

163210404340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163210404340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182985469632).

163210404340 is an abundant number, since it is smaller than the sum of its proper divisors (202760534924).

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

163210404340 is a wasteful number, since it uses less digits than its factorization.

163210404340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177 (or 4175 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 163210404340 in words is "one hundred sixty-three billion, two hundred ten million, four hundred four thousand, three hundred forty".