165224869194 has 256 divisors, whose sum is σ = 428654592000. Its totient is φ = 42081984000.

The previous prime is 165224869181. The next prime is 165224869213. The reversal of 165224869194 is 491968422561.

It is a happy number.

165224869194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon 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 127 ways as a sum of consecutive naturals, for example, 290377342 + ... + 290377910.

It is an arithmetic number, because the mean of its divisors is an integer number (1674432000).

Almost surely, 2^165224869194 is an apocalyptic number.

165224869194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 165224869194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214327296000).

165224869194 is an abundant number, since it is smaller than the sum of its proper divisors (263429722806).

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

165224869194 is a wasteful number, since it uses less digits than its factorization.

165224869194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 820 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The spelling of 165224869194 in words is "one hundred sixty-five billion, two hundred twenty-four million, eight hundred sixty-nine thousand, one hundred ninety-four".