163069920 has 288 divisors, whose sum is σ = 620815104. Its totient is φ = 38707200.

The previous prime is 163069849. The next prime is 163069969. The reversal of 163069920 is 29960361.

163069920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 580180 + ... + 580460.

It is an arithmetic number, because the mean of its divisors is an integer number (2155608).

Almost surely, 2^163069920 is an apocalyptic number.

163069920 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 163069920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310407552).

163069920 is an abundant number, since it is smaller than the sum of its proper divisors (457745184).

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

163069920 is a wasteful number, since it uses less digits than its factorization.

163069920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 163069920 is about 12769.8833197489. The cubic root of 163069920 is about 546.3336526877. Note that the first 3 decimals are identical.

The spelling of 163069920 in words is "one hundred sixty-three million, sixty-nine thousand, nine hundred twenty".