163732221152 has 72 divisors (see below), whose sum is σ = 338363981424. Its totient is φ = 77843600384.

The previous prime is 163732221151. The next prime is 163732221173. The reversal of 163732221152 is 251122237361.

163732221152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163732221151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22024028 + ... + 22031460.

It is an arithmetic number, because the mean of its divisors is an integer number (4699499742).

Almost surely, 2^163732221152 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 163732221152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169181990712).

163732221152 is an abundant number, since it is smaller than the sum of its proper divisors (174631760272).

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

163732221152 is an equidigital number, since it uses as much as digits as its factorization.

163732221152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7812 (or 7631 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The spelling of 163732221152 in words is "one hundred sixty-three billion, seven hundred thirty-two million, two hundred twenty-one thousand, one hundred fifty-two".