163404340968 has 128 divisors (see below), whose sum is σ = 476794483200. Its totient is φ = 46141228800.

The previous prime is 163404340849. The next prime is 163404340991. The reversal of 163404340968 is 869043404361.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38955 + ... + 572997.

It is an arithmetic number, because the mean of its divisors is an integer number (3724956900).

Almost surely, 2^163404340968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163404340968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238397241600).

163404340968 is an abundant number, since it is smaller than the sum of its proper divisors (313390142232).

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

163404340968 is a wasteful number, since it uses less digits than its factorization.

163404340968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534143 (or 534139 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 163404340968 in words is "one hundred sixty-three billion, four hundred four million, three hundred forty thousand, nine hundred sixty-eight".