165163012252 has 24 divisors (see below), whose sum is σ = 339253757024. Its totient is φ = 68871062592.

The previous prime is 165163012229. The next prime is 165163012291. The reversal of 165163012252 is 252210361561.

165163012252 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×165163012252² (a number of 23 digits) contains 22 as substring.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 79710843 + ... + 79712914.

Almost surely, 2^165163012252 is an apocalyptic number.

It is an amenable number.

165163012252 is an abundant number, since it is smaller than the sum of its proper divisors (174090744772).

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

165163012252 is a wasteful number, since it uses less digits than its factorization.

165163012252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159423805 (or 159423803 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 165163012252 in words is "one hundred sixty-five billion, one hundred sixty-three million, twelve thousand, two hundred fifty-two".