164044202136 has 64 divisors (see below), whose sum is σ = 423635220480. Its totient is φ = 52880567040.

The previous prime is 164044202117. The next prime is 164044202143. The reversal of 164044202136 is 631202440461.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 164044202097 and 164044202106.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1000380 + ... + 1152756.

It is an arithmetic number, because the mean of its divisors is an integer number (6619300320).

Almost surely, 2^164044202136 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 164044202136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211817610240).

164044202136 is an abundant number, since it is smaller than the sum of its proper divisors (259591018344).

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

164044202136 is a wasteful number, since it uses less digits than its factorization.

164044202136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153864 (or 153860 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 164044202136 its reverse (631202440461), we get a palindrome (795246642597).

The spelling of 164044202136 in words is "one hundred sixty-four billion, forty-four million, two hundred two thousand, one hundred thirty-six".