163222642500 has 120 divisors (see below), whose sum is σ = 484894384128. Its totient is φ = 42704688000.

The previous prime is 163222642469. The next prime is 163222642577. The reversal of 163222642500 is 5246222361.

It is a happy number.

163222642500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 192189 + ... + 602811.

Almost surely, 2^163222642500 is an apocalyptic number.

163222642500 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 163222642500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242447192064).

163222642500 is an abundant number, since it is smaller than the sum of its proper divisors (321671741628).

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

163222642500 is a wasteful number, since it uses less digits than its factorization.

163222642500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410703 (or 410686 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 163222642500 its reverse (5246222361), we get a palindrome (168468864861).

The spelling of 163222642500 in words is "one hundred sixty-three billion, two hundred twenty-two million, six hundred forty-two thousand, five hundred".