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20416516166105 = 57961681837979
BaseRepresentation
bin1001010010001100101110…
…01100011001000111011001
32200021210121010010001020022
410221012113030121013121
510134001011114303410
6111231115033040225
74205021206020443
oct451062714310731
980253533101208
1020416516166105
116561661133494
122358a35b56075
13b51366600717
14508243b55493
15256131733455
hex1291973191d9

20416516166105 has 16 divisors (see below), whose sum is σ = 24810375532800. Its totient is φ = 16126182708480.

The previous prime is 20416516166093. The next prime is 20416516166129. The reversal of 20416516166105 is 50166161561402.

It is not a de Polignac number, because 20416516166105 - 28 = 20416516165849 is a prime.

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, 23945006 + ... + 24782984.

It is an arithmetic number, because the mean of its divisors is an integer number (1550648470800).

Almost surely, 220416516166105 is an apocalyptic number.

It is an amenable number.

20416516166105 is a deficient number, since it is larger than the sum of its proper divisors (4393859366695).

20416516166105 is an equidigital number, since it uses as much as digits as its factorization.

20416516166105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899744.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 20416516166105 in words is "twenty trillion, four hundred sixteen billion, five hundred sixteen million, one hundred sixty-six thousand, one hundred five".

Divisors: 1 5 79 395 61681 308405 837979 4189895 4872799 24363995 66200341 331001705 51687382699 258436913495 4083303233221 20416516166105