163007322752 has 32 divisors (see below), whose sum is σ = 329189678580. Its totient is φ = 80387168256.

The previous prime is 163007322749. The next prime is 163007322757. The reversal of 163007322752 is 257223700361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 159571487296 + 3435835456 = 399464^2 + 58616^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (163007322757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8713223 + ... + 8731910.

Almost surely, 2^163007322752 is an apocalyptic number.

It is an amenable number.

163007322752 is an abundant number, since it is smaller than the sum of its proper divisors (166182355828).

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

163007322752 is an equidigital number, since it uses as much as digits as its factorization.

163007322752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17445220 (or 17445208 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 163007322752 in words is "one hundred sixty-three billion, seven million, three hundred twenty-two thousand, seven hundred fifty-two".