165500443068 has 12 divisors (see below), whose sum is σ = 386167700520. Its totient is φ = 55166814352.

The previous prime is 165500443067. The next prime is 165500443133. The reversal of 165500443068 is 860344005561.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165500443063) 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 3 ways as a sum of consecutive naturals, for example, 6895851783 + ... + 6895851806.

It is an arithmetic number, because the mean of its divisors is an integer number (32180641710).

Almost surely, 2^165500443068 is an apocalyptic number.

It is an amenable number.

165500443068 is an abundant number, since it is smaller than the sum of its proper divisors (220667257452).

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

165500443068 is a wasteful number, since it uses less digits than its factorization.

165500443068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13791703596 (or 13791703594 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 165500443068 in words is "one hundred sixty-five billion, five hundred million, four hundred forty-three thousand, sixty-eight".