163420959576 has 384 divisors, whose sum is σ = 514858291200. Its totient is φ = 42986845440.

The previous prime is 163420959547. The next prime is 163420959577. The reversal of 163420959576 is 675959024361.

163420959576 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 (163420959577) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 82576555 + ... + 82578533.

It is an arithmetic number, because the mean of its divisors is an integer number (1340776800).

Almost surely, 2^163420959576 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 163420959576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257429145600).

163420959576 is an abundant number, since it is smaller than the sum of its proper divisors (351437331624).

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

163420959576 is a wasteful number, since it uses less digits than its factorization.

163420959576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139 (or 2128 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 57.

The spelling of 163420959576 in words is "one hundred sixty-three billion, four hundred twenty million, nine hundred fifty-nine thousand, five hundred seventy-six".