165229591072 has 288 divisors, whose sum is σ = 424163900160. Its totient is φ = 61914378240.

The previous prime is 165229591057. The next prime is 165229591097. The reversal of 165229591072 is 270195922561.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94904122 + ... + 94905862.

It is an arithmetic number, because the mean of its divisors is an integer number (1472791320).

Almost surely, 2^165229591072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165229591072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212081950080).

165229591072 is an abundant number, since it is smaller than the sum of its proper divisors (258934309088).

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

165229591072 is a wasteful number, since it uses less digits than its factorization.

165229591072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916 (or 1895 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 49.

The spelling of 165229591072 in words is "one hundred sixty-five billion, two hundred twenty-nine million, five hundred ninety-one thousand, seventy-two".