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161601160116141 = 321922711279143501
BaseRepresentation
bin100100101111100110110011…
…101111100111011110101101
3210012011220211200221112101200
4210233212303233213132231
5132140133133442204031
61331410314215200113
746016204252540604
oct4457466357473655
9705156750845350
10161601160116141
1147544737a52139
121615b479676039
136c22c02088c05
142bc9775d42a3b
1513a393c7148e6
hex92f9b3be77ad

161601160116141 has 72 divisors (see below), whose sum is σ = 247460083752960. Its totient is φ = 101607057720000.

The previous prime is 161601160116133. The next prime is 161601160116181. The reversal of 161601160116141 is 141611061106161.

161601160116141 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 0 + 1 + 1 + 601 + 1 + 6 + 1 + 41 = 666.

It is not a de Polignac number, because 161601160116141 - 23 = 161601160116133 is a prime.

It is a super-2 number, since 2×1616011601161412 (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161601160116096 and 161601160116105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161601160116181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1126060891 + ... + 1126204391.

It is an arithmetic number, because the mean of its divisors is an integer number (3436945607680).

Almost surely, 2161601160116141 is an apocalyptic number.

It is an amenable number.

161601160116141 is a deficient number, since it is larger than the sum of its proper divisors (85858923636819).

161601160116141 is a wasteful number, since it uses less digits than its factorization.

161601160116141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145095 (or 145073 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The spelling of 161601160116141 in words is "one hundred sixty-one trillion, six hundred one billion, one hundred sixty million, one hundred sixteen thousand, one hundred forty-one".

Divisors: 1 3 9 19 57 171 271 361 813 1083 1279 2439 3249 3837 5149 11511 15447 24301 46341 72903 97831 143501 218709 293493 346609 430503 461719 880479 1039827 1291509 1385157 2726519 3119481 4155471 6585571 8179557 19756713 24538671 38888771 51803861 59270139 116666313 125125849 155411583 183537779 349998939 375377547 466234749 550613337 738886649 1126132641 1651840011 2216659947 3487217801 6649979841 10461653403 14038846331 31384960209 42116538993 49738738109 66257138219 126349616979 149216214327 198771414657 447648642981 596314243971 945036024071 2835108072213 8505324216639 17955684457349 53867053372047 161601160116141