| Base | Representation |
|---|---|
| bin | 1001101011011010110… |
| … | …0011101100010000000 |
| 3 | 120220011220121120000000 |
| 4 | 2122312230131202000 |
| 5 | 10211012102201411 |
| 6 | 204215110000000 |
| 7 | 15004264353210 |
| oct | 2326654354200 |
| 9 | 526156546000 |
| 10 | 166273865856 |
| 11 | 6457529846a |
| 12 | 28284946000 |
| 13 | 128aacb2c97 |
| 14 | 8094c52240 |
| 15 | 44d2670956 |
| hex | 26b6b1d880 |
166273865856 has 512 divisors, whose sum is σ = 578842329600. Its totient is φ = 46581350400.
The previous prime is 166273865851. The next prime is 166273865873. The reversal of 166273865856 is 658568372661.
166273865856 is a `hidden beast` number, since 16 + 6 + 2 + 7 + 38 + 6 + 585 + 6 = 666.
It is a super-2 number, since 2×1662738658562 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a junction number, because it is equal to n+sod(n) for n = 166273865793 and 166273865802.
It is not an unprimeable number, because it can be changed into a prime (166273865851) by changing a digit.
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 63 ways as a sum of consecutive naturals, for example, 103855456 + ... + 103857056.
It is an arithmetic number, because the mean of its divisors is an integer number (1130551425).
Almost surely, 2166273865856 is an apocalyptic number.
166273865856 is a gapful number since it is divisible by the number (16) 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 166273865856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289421164800).
166273865856 is an abundant number, since it is smaller than the sum of its proper divisors (412568463744).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
166273865856 is an frugal number, since it uses more digits than its factorization.
166273865856 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1696 (or 1666 counting only the distinct ones).
The product of its digits is 87091200, while the sum is 63.
The spelling of 166273865856 in words is "one hundred sixty-six billion, two hundred seventy-three million, eight hundred sixty-five thousand, eight hundred fifty-six".
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