| Base | Representation |
|---|---|
| bin | 100101100100000100010010… |
| … | …101110000111110011100000 |
| 3 | 210122221120011022001121102020 |
| 4 | 211210010102232013303200 |
| 5 | 133123214330131333440 |
| 6 | 1343210410030221440 |
| 7 | 46540520262511050 |
| oct | 4544042256076340 |
| 9 | 718846138047366 |
| 10 | 165206231121120 |
| 11 | 48704629606512 |
| 12 | 166420a8654880 |
| 13 | 7124b5b005c77 |
| 14 | 2cb204a785560 |
| 15 | 14175d70a63d0 |
| hex | 964112b87ce0 |
165206231121120 has 384 divisors, whose sum is σ = 629962575492096. Its totient is φ = 35526884622336.
The previous prime is 165206231121119. The next prime is 165206231121121. The reversal of 165206231121120 is 21121132602561.
It is an interprime number because it is at equal distance from previous prime (165206231121119) and next prime (165206231121121).
It is a super-2 number, since 2×1652062311211202 (a number of 29 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (165206231121121) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 152713962 + ... + 153791958.
It is an arithmetic number, because the mean of its divisors is an integer number (1640527540344).
Almost surely, 2165206231121120 is an apocalyptic number.
165206231121120 is a gapful number since it is divisible by the number (10) 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 165206231121120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314981287746048).
165206231121120 is an abundant number, since it is smaller than the sum of its proper divisors (464756344370976).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
165206231121120 is a wasteful number, since it uses less digits than its factorization.
165206231121120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1080722 (or 1080714 counting only the distinct ones).
The product of its (nonzero) digits is 8640, while the sum is 33.
Adding to 165206231121120 its reverse (21121132602561), we get a palindrome (186327363723681).
The spelling of 165206231121120 in words is "one hundred sixty-five trillion, two hundred six billion, two hundred thirty-one million, one hundred twenty-one thousand, one hundred twenty".
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