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164863384610970 = 235291492936343313
BaseRepresentation
bin100101011111000100111111…
…011110011110100010011010
3210121201210012201212100022210
4211133010333132132202122
5133102110202430022340
61342345105431455550
746503662234325243
oct4537047736364232
9717653181770283
10164863384610970
11485921946a6a51
12165a7765b275b6
1370cb720491a96
142c9d604dc5cca
15140d71d08a180
hex95f13f79e89a

164863384610970 has 128 divisors (see below), whose sum is σ = 412086623904000. Its totient is φ = 42160291647488.

The previous prime is 164863384610959. The next prime is 164863384611017. The reversal of 164863384610970 is 79016483368461.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3806304034 + ... + 3806347346.

It is an arithmetic number, because the mean of its divisors is an integer number (3219426749250).

Almost surely, 2164863384610970 is an apocalyptic number.

164863384610970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 164863384610970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206043311952000).

164863384610970 is an abundant number, since it is smaller than the sum of its proper divisors (247223239293030).

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

164863384610970 is a wasteful number, since it uses less digits than its factorization.

164863384610970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72864.

The product of its (nonzero) digits is 125411328, while the sum is 66.

The spelling of 164863384610970 in words is "one hundred sixty-four trillion, eight hundred sixty-three billion, three hundred eighty-four million, six hundred ten thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 29 30 58 87 145 149 174 290 298 435 447 745 870 894 1490 2235 4321 4470 8642 12963 21605 25926 29363 43210 43313 58726 64815 86626 88089 129630 129939 146815 176178 216565 259878 293630 433130 440445 649695 851527 880890 1256077 1299390 1703054 2512154 2554581 3768231 4257635 4375087 5109162 6280385 6453637 7536462 8515270 8750174 12560770 12772905 12907274 13125261 18841155 19360911 21875435 25545810 26250522 32268185 37682310 38721822 43750870 64536370 65626305 96804555 126877523 131252610 187155473 193609110 253755046 374310946 380632569 561466419 634387615 761265138 935777365 1122932838 1268775230 1271799619 1871554730 1903162845 2543599238 2807332095 3806325690 3815398857 5614664190 6358998095 7630797714 12717996190 19076994285 36882188951 38153988570 73764377902 110646566853 184410944755 189498143231 221293133706 368821889510 378996286462 553232834265 568494429693 947490716155 1106465668530 1136988859386 1894981432310 2842472148465 5495446153699 5684944296930 10990892307398 16486338461097 27477230768495 32972676922194 54954461536990 82431692305485 164863384610970