164345622253312 has 144 divisors (see below), whose sum is σ = 342499400570880. Its totient is φ = 78608988057600.

The previous prime is 164345622253279. The next prime is 164345622253363. The reversal of 164345622253312 is 213352226543461.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 349086237 + ... + 349556707.

It is an arithmetic number, because the mean of its divisors is an integer number (2378468059520).

Almost surely, 2^{164345622253312} 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 164345622253312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171249700285440).

164345622253312 is an abundant number, since it is smaller than the sum of its proper divisors (178153778317568).

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

164345622253312 is a wasteful number, since it uses less digits than its factorization.

164345622253312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470950 (or 470936 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 49.

Adding to 164345622253312 its reverse (213352226543461), we get a palindrome (377697848796773).

The spelling of 164345622253312 in words is "one hundred sixty-four trillion, three hundred forty-five billion, six hundred twenty-two million, two hundred fifty-three thousand, three hundred twelve".