164435155326 has 96 divisors (see below), whose sum is σ = 398081174400. Its totient is φ = 50571441504.

The previous prime is 164435155307. The next prime is 164435155337. The reversal of 164435155326 is 623551534461.

It is a happy number.

164435155326 is a `hidden beast` number, since 1 + 6 + 4 + 43 + 51 + 553 + 2 + 6 = 666.

164435155326 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×164435155326³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 17047461 + ... + 17057103.

It is an arithmetic number, because the mean of its divisors is an integer number (4146678900).

Almost surely, 2^164435155326 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164435155326, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199040587200).

164435155326 is an abundant number, since it is smaller than the sum of its proper divisors (233646019074).

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

164435155326 is a wasteful number, since it uses less digits than its factorization.

164435155326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12372 (or 12360 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

Adding to 164435155326 its reverse (623551534461), we get a palindrome (787986689787).

The spelling of 164435155326 in words is "one hundred sixty-four billion, four hundred thirty-five million, one hundred fifty-five thousand, three hundred twenty-six".