164452123612500 has 144 divisors (see below), whose sum is σ = 480201373270080. Its totient is φ = 43800863680000.

The previous prime is 164452123612463. The next prime is 164452123612507. The reversal of 164452123612500 is 5216321254461.

164452123612500 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164452123612507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28361116 + ... + 33663884.

It is an arithmetic number, because the mean of its divisors is an integer number (3334731758820).

Almost surely, 2^{164452123612500} is an apocalyptic number.

164452123612500 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 164452123612500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240100686635040).

164452123612500 is an abundant number, since it is smaller than the sum of its proper divisors (315749249657580).

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

164452123612500 is an equidigital number, since it uses as much as digits as its factorization.

164452123612500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5303628 (or 5303606 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

Adding to 164452123612500 its reverse (5216321254461), we get a palindrome (169668444866961).

The spelling of 164452123612500 in words is "one hundred sixty-four trillion, four hundred fifty-two billion, one hundred twenty-three million, six hundred twelve thousand, five hundred".