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12151132160 = 21251722053
BaseRepresentation
bin10110101000100001…
…11001000000000000
31011100211111110200212
423110100321000000
5144341142212120
65325424533252
7610054630166
oct132420710000
934324443625
1012151132160
115175aa7492
122431481228
1311b856bb3b
14833b1d236
154b1b756c5
hex2d4439000

12151132160 has 156 divisors (see below), whose sum is σ = 30990386388. Its totient is φ = 4572315648.

The previous prime is 12151132151. The next prime is 12151132199. The reversal of 12151132160 is 6123115121.

It can be written as a sum of positive squares in 6 ways, for example, as 645566464 + 11505565696 = 25408^2 + 107264^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5917694 + ... + 5919746.

It is an arithmetic number, because the mean of its divisors is an integer number (198656323).

Almost surely, 212151132160 is an apocalyptic number.

12151132160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12151132160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15495193194).

12151132160 is an abundant number, since it is smaller than the sum of its proper divisors (18839254228).

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

12151132160 is an equidigital number, since it uses as much as digits as its factorization.

12151132160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2077 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 12151132160 its reverse (6123115121), we get a palindrome (18274247281).

The spelling of 12151132160 in words is "twelve billion, one hundred fifty-one million, one hundred thirty-two thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 64 68 80 85 128 136 160 170 256 272 289 320 340 512 544 578 640 680 1024 1088 1156 1280 1360 1445 2048 2053 2176 2312 2560 2720 2890 4096 4106 4352 4624 5120 5440 5780 8212 8704 9248 10240 10265 10880 11560 16424 17408 18496 20480 20530 21760 23120 32848 34816 34901 36992 41060 43520 46240 65696 69632 69802 73984 82120 87040 92480 131392 139604 147968 164240 174080 174505 184960 262784 279208 295936 328480 348160 349010 369920 525568 558416 591872 593317 656960 698020 739840 1051136 1116832 1183744 1186634 1313920 1396040 1479680 2102272 2233664 2373268 2627840 2792080 2959360 2966585 4204544 4467328 4746536 5255680 5584160 5918720 5933170 8409088 8934656 9493072 10511360 11168320 11866340 17869312 18986144 21022720 22336640 23732680 35738624 37972288 42045440 44673280 47465360 71477248 75944576 89346560 94930720 142954496 151889152 178693120 189861440 303778304 357386240 379722880 607556608 714772480 759445760 1215113216 1518891520 2430226432 3037783040 6075566080 12151132160