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67168006811040 = 25351069130901167
BaseRepresentation
bin11110100010110110001010…
…01011111010110110100000
322210211012100212210210020110
433101123011023322312200
532300440034220423130
6354504320101011320
720101504552510362
oct1721330513726640
9283735325723213
1067168006811040
111a446878862213
1276497396b3b40
132b62bba1cca35
141282d3da00d32
157b72d9b32ab0
hex3d16c52fada0

67168006811040 has 96 divisors (see below), whose sum is σ = 211777145637120. Its totient is φ = 17894712996864.

The previous prime is 67168006811027. The next prime is 67168006811063. The reversal of 67168006811040 is 4011860086176.

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

It is a super-2 number, since 2×671680068110402 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 64937464 + ... + 65963703.

It is an arithmetic number, because the mean of its divisors is an integer number (2206011933720).

Almost surely, 267168006811040 is an apocalyptic number.

67168006811040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67168006811040 is an abundant number, since it is smaller than the sum of its proper divisors (144609138826080).

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

67168006811040 is a wasteful number, since it uses less digits than its factorization.

67168006811040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130902254 (or 130902246 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 67168006811040 in words is "sixty-seven trillion, one hundred sixty-eight billion, six million, eight hundred eleven thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 1069 2138 3207 4276 5345 6414 8552 10690 12828 16035 17104 21380 25656 32070 34208 42760 51312 64140 85520 102624 128280 171040 256560 513120 130901167 261802334 392703501 523604668 654505835 785407002 1047209336 1309011670 1570814004 1963517505 2094418672 2618023340 3141628008 3927035010 4188837344 5236046680 6283256016 7854070020 10472093360 12566512032 15708140040 20944186720 31416280080 62832560160 139933347523 279866695046 419800042569 559733390092 699666737615 839600085138 1119466780184 1399333475230 1679200170276 2099000212845 2238933560368 2798666950460 3358400340552 4198000425690 4477867120736 5597333900920 6716800681104 8396000851380 11194667801840 13433601362208 16792001702760 22389335603680 33584003405520 67168006811040