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10688910965664 = 2534114811833679
BaseRepresentation
bin1001101110001011010010…
…1111011011101110100000
31101211211221120202100011220
42123202310233123232200
52400111342201400124
634422230133535040
72152151115053541
oct233426457335640
941754846670156
1010688910965664
113451161643028
1212476ba7a4480
135c6c630c6589
1428d4bb7c84c8
1513809a720879
hex9b8b4bdbba0

10688910965664 has 96 divisors (see below), whose sum is σ = 28762165635840. Its totient is φ = 3473719603200.

The previous prime is 10688910965611. The next prime is 10688910965713. The reversal of 10688910965664 is 46656901988601.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×106889109656642 (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4912377 + ... + 6746055.

It is an arithmetic number, because the mean of its divisors is an integer number (299605892040).

Almost surely, 210688910965664 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 10688910965664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14381082817920).

10688910965664 is an abundant number, since it is smaller than the sum of its proper divisors (18073254670176).

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

10688910965664 is a wasteful number, since it uses less digits than its factorization.

10688910965664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835214 (or 1835206 counting only the distinct ones).

The product of its (nonzero) digits is 134369280, while the sum is 69.

The spelling of 10688910965664 in words is "ten trillion, six hundred eighty-eight billion, nine hundred ten million, nine hundred sixty-five thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 41 48 82 96 123 164 246 328 492 656 984 1312 1481 1968 2962 3936 4443 5924 8886 11848 17772 23696 35544 47392 60721 71088 121442 142176 182163 242884 364326 485768 728652 971536 1457304 1833679 1943072 2914608 3667358 5501037 5829216 7334716 11002074 14669432 22004148 29338864 44008296 58677728 75180839 88016592 150361678 176033184 225542517 300723356 451085034 601446712 902170068 1202893424 1804340136 2405786848 2715678599 3608680272 5431357198 7217360544 8147035797 10862714396 16294071594 21725428792 32588143188 43450857584 65176286376 86901715168 111342822559 130352572752 222685645118 260705145504 334028467677 445371290236 668056935354 890742580472 1336113870708 1781485160944 2672227741416 3562970321888 5344455482832 10688910965664