| Base | Representation |
|---|---|
| bin | 100101100100111011010111… |
| … | …110000101110110000100100 |
| 3 | 210200011012210220002200211100 |
| 4 | 211210323113300232300210 |
| 5 | 133130201440100210424 |
| 6 | 1343253510305440100 |
| 7 | 46545012653406414 |
| oct | 4544732760566044 |
| 9 | 720135726080740 |
| 10 | 165265371491364 |
| 11 | 48727717824a61 |
| 12 | 16651652640030 |
| 13 | 712a5c46329a1 |
| 14 | 2cb4c5adca644 |
| 15 | 1418de9103dc9 |
| hex | 964ed7c2ec24 |
165265371491364 has 243 divisors, whose sum is σ = 429385729587633. Its totient is φ = 53595952591104.
The previous prime is 165265371491359. The next prime is 165265371491369. The reversal of 165265371491364 is 463194173562561.
The square root of 165265371491364 is 12855558.
It is a perfect power (a square), and thus also a powerful number.
165265371491364 is a `hidden beast` number, since 1 + 6 + 5 + 2 + 6 + 537 + 1 + 4 + 91 + 3 + 6 + 4 = 666.
165265371491364 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (165265371491359) and next prime (165265371491369).
It can be written as a sum of positive squares in only one way, i.e., 2912108120100 + 162353263371264 = 1706490^2 + 12741792^2 .
It is not an unprimeable number, because it can be changed into a prime (165265371491369) by changing a digit.
It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 583976577567 + ... + 583976577849.
Almost surely, 2165265371491364 is an apocalyptic number.
165265371491364 is the 12855558-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 165265371491364
165265371491364 is an abundant number, since it is smaller than the sum of its proper divisors (264120358096269).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
165265371491364 is an equidigital number, since it uses as much as digits as its factorization.
165265371491364 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 936 (or 468 counting only the distinct ones).
The product of its digits is 97977600, while the sum is 63.
The spelling of 165265371491364 in words is "one hundred sixty-five trillion, two hundred sixty-five billion, three hundred seventy-one million, four hundred ninety-one thousand, three hundred sixty-four".
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