163023199144 has 128 divisors (see below), whose sum is σ = 349332480000. Its totient is φ = 70702689024.

The previous prime is 163023199037. The next prime is 163023199151. The reversal of 163023199144 is 441991320361.

163023199144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 163023199144.

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, 238686627 + ... + 238687309.

It is an arithmetic number, because the mean of its divisors is an integer number (2729160000).

Almost surely, 2^163023199144 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 163023199144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174666240000).

163023199144 is an abundant number, since it is smaller than the sum of its proper divisors (186309280856).

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

163023199144 is a wasteful number, since it uses less digits than its factorization.

163023199144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 163023199144 in words is "one hundred sixty-three billion, twenty-three million, one hundred ninety-nine thousand, one hundred forty-four".