163944248832 has 400 divisors, whose sum is σ = 602266681632. Its totient is φ = 43237048320.

The previous prime is 163944248803. The next prime is 163944248833. The reversal of 163944248832 is 238842449361.

It is a happy number.

163944248832 is a `hidden beast` number, since 1 + 6 + 3 + 94 + 42 + 488 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163944248833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3752232 + ... + 3795672.

Almost surely, 2^163944248832 is an apocalyptic number.

163944248832 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 163944248832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301133340816).

163944248832 is an abundant number, since it is smaller than the sum of its proper divisors (438322432800).

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

163944248832 is an equidigital number, since it uses as much as digits as its factorization.

163944248832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43491 (or 43466 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 54.

The spelling of 163944248832 in words is "one hundred sixty-three billion, nine hundred forty-four million, two hundred forty-eight thousand, eight hundred thirty-two".