163885325472 has 144 divisors (see below), whose sum is σ = 509082301728. Its totient is φ = 49597232640.

The previous prime is 163885325467. The next prime is 163885325473. The reversal of 163885325472 is 274523588361.

163885325472 is a `hidden beast` number, since 1 + 6 + 38 + 8 + 532 + 5 + 4 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-3 number, since 3×163885325472³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (163885325473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2415403 + ... + 2482325.

It is an arithmetic number, because the mean of its divisors is an integer number (3535293762).

Almost surely, 2^163885325472 is an apocalyptic number.

163885325472 is a gapful number since it is divisible by the number (12) 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 163885325472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254541150864).

163885325472 is an abundant number, since it is smaller than the sum of its proper divisors (345196976256).

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

163885325472 is a wasteful number, since it uses less digits than its factorization.

163885325472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67723 (or 67712 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The spelling of 163885325472 in words is "one hundred sixty-three billion, eight hundred eighty-five million, three hundred twenty-five thousand, four hundred seventy-two".