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16159017680 = 24513831311429
BaseRepresentation
bin11110000110010011…
…10000101011010000
31112201011001011001022
433003021300223100
5231043202031210
611231235455012
71111302245501
oct170311605320
945634034038
1016159017680
116942387173
12316b757468
1316a69c1830
14ad4126ba8
15648957155
hex3c3270ad0

16159017680 has 160 divisors (see below), whose sum is σ = 41288607360. Its totient is φ = 5845432320.

The previous prime is 16159017673. The next prime is 16159017691. The reversal of 16159017680 is 8671095161.

It is a super-2 number, since 2×161590176802 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11307206 + ... + 11308634.

It is an arithmetic number, because the mean of its divisors is an integer number (258053796).

Almost surely, 216159017680 is an apocalyptic number.

16159017680 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 16159017680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20644303680).

16159017680 is an abundant number, since it is smaller than the sum of its proper divisors (25129589680).

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

16159017680 is a wasteful number, since it uses less digits than its factorization.

16159017680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 44.

The spelling of 16159017680 in words is "sixteen billion, one hundred fifty-nine million, seventeen thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 83 104 130 131 166 208 260 262 332 415 520 524 655 664 830 1040 1048 1079 1310 1328 1429 1660 1703 2096 2158 2620 2858 3320 3406 4316 5240 5395 5716 6640 6812 7145 8515 8632 10480 10790 10873 11432 13624 14290 17030 17264 18577 21580 21746 22864 27248 28580 34060 37154 43160 43492 54365 57160 68120 74308 86320 86984 92885 108730 114320 118607 136240 141349 148616 173968 185770 187199 217460 237214 282698 297232 371540 374398 434920 474428 565396 593035 706745 743080 748796 869840 935995 948856 1130792 1186070 1413490 1486160 1497592 1541891 1871990 1897712 2261584 2372140 2433587 2826980 2995184 3083782 3743980 4744280 4867174 5653960 6167564 7487960 7709455 9488560 9734348 11307920 12167935 12335128 14975920 15418910 15537517 19468696 24335870 24670256 30837820 31075034 38937392 48671740 61675640 62150068 77687585 97343480 123351280 124300136 155375170 194686960 201987721 248600272 310750340 403975442 621500680 807950884 1009938605 1243001360 1615901768 2019877210 3231803536 4039754420 8079508840 16159017680