165036520456 has 16 divisors (see below), whose sum is σ = 309933887040. Its totient is φ = 82387483920.

The previous prime is 165036520403. The next prime is 165036520457. The reversal of 165036520456 is 654025630561.

It is not an unprimeable number, because it can be changed into a prime (165036520457) 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, 16341676 + ... + 16351771.

It is an arithmetic number, because the mean of its divisors is an integer number (19370867940).

Almost surely, 2^165036520456 is an apocalyptic number.

It is an amenable number.

165036520456 is a deficient number, since it is larger than the sum of its proper divisors (144897366584).

165036520456 is a wasteful number, since it uses less digits than its factorization.

165036520456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32694084 (or 32694080 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 165036520456 in words is "one hundred sixty-five billion, thirty-six million, five hundred twenty thousand, four hundred fifty-six".