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16668004560 = 2435200334673
BaseRepresentation
bin11111000010111110…
…11001000011010000
31121000121210100210020
433201133121003100
5233114002121220
611353541103440
71130022462324
oct174137310320
947017710706
1016668004560
117083721589
1232920b7b80
1317582a22bc
14b4197b984
15678498040
hex3e17d90d0

16668004560 has 80 divisors (see below), whose sum is σ = 51698101824. Its totient is φ = 4442454016.

The previous prime is 16668004553. The next prime is 16668004651. The reversal of 16668004560 is 6540086661.

16668004560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463384 + ... + 498056.

Almost surely, 216668004560 is an apocalyptic number.

16668004560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16668004560 is an abundant number, since it is smaller than the sum of its proper divisors (35030097264).

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

16668004560 is a wasteful number, since it uses less digits than its factorization.

16668004560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36692 (or 36686 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 16668004560 in words is "sixteen billion, six hundred sixty-eight million, four thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 2003 4006 6009 8012 10015 12018 16024 20030 24036 30045 32048 34673 40060 48072 60090 69346 80120 96144 104019 120180 138692 160240 173365 208038 240360 277384 346730 416076 480720 520095 554768 693460 832152 1040190 1386920 1664304 2080380 2773840 4160760 8321520 69450019 138900038 208350057 277800076 347250095 416700114 555600152 694500190 833400228 1041750285 1111200304 1389000380 1666800456 2083500570 2778000760 3333600912 4167001140 5556001520 8334002280 16668004560