164843140000 has 720 divisors, whose sum is σ = 525195183744. Its totient is φ = 49800960000.

The previous prime is 164843139983. The next prime is 164843140001. The reversal of 164843140000 is 41348461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164843140001) 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 119 ways as a sum of consecutive naturals, for example, 626779869 + ... + 626780131.

Almost surely, 2^164843140000 is an apocalyptic number.

164843140000 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 164843140000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262597591872).

164843140000 is an abundant number, since it is smaller than the sum of its proper divisors (360352043744).

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

164843140000 is a wasteful number, since it uses less digits than its factorization.

164843140000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 164843140000 its reverse (41348461), we get a palindrome (164884488461).

The spelling of 164843140000 in words is "one hundred sixty-four billion, eight hundred forty-three million, one hundred forty thousand".