165243287796 has 24 divisors (see below), whose sum is σ = 385576931040. Its totient is φ = 55079773152.

The previous prime is 165243287791. The next prime is 165243287849. The reversal of 165243287796 is 697782342561.

165243287796 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165243287791) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 445390 + ... + 727226.

It is an arithmetic number, because the mean of its divisors is an integer number (16065705460).

Almost surely, 2^165243287796 is an apocalyptic number.

It is an amenable number.

165243287796 is an abundant number, since it is smaller than the sum of its proper divisors (220333643244).

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

165243287796 is a wasteful number, since it uses less digits than its factorization.

165243287796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330703 (or 330701 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 60.

The spelling of 165243287796 in words is "one hundred sixty-five billion, two hundred forty-three million, two hundred eighty-seven thousand, seven hundred ninety-six".