| Base | Representation |
|---|---|
| bin | 1001011011001110110101011… |
| … | …0010001010101111110101000 |
| 3 | 10012222102001221000121021212010 |
| 4 | 2112303231112101111332220 |
| 5 | 1143413324210133201230 |
| 6 | 10310345334235515520 |
| 7 | 256463660035216032 |
| oct | 22663552621257650 |
| 9 | 3188361830537763 |
| 10 | 663260362006440 |
| 11 | 18237615a210860 |
| 12 | 624803752b8ba0 |
| 13 | 22612250962443 |
| 14 | b9add89546c52 |
| 15 | 51a2dcdd479b0 |
| hex | 25b3b56455fa8 |
663260362006440 has 256 divisors, whose sum is σ = 2173235854602240. Its totient is φ = 160600452480000.
The previous prime is 663260362006433. The next prime is 663260362006447. The reversal of 663260362006440 is 44600263062366.
It is an interprime number because it is at equal distance from previous prime (663260362006433) and next prime (663260362006447).
It is a super-3 number, since 3×6632603620064403 (a number of 45 digits) contains 333 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 663260362006440.
It is not an unprimeable number, because it can be changed into a prime (663260362006447) 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, 4153058590 + ... + 4153218290.
It is an arithmetic number, because the mean of its divisors is an integer number (8489202557040).
Almost surely, 2663260362006440 is an apocalyptic number.
663260362006440 is a gapful number since it is divisible by the number (60) 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 663260362006440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1086617927301120).
663260362006440 is an abundant number, since it is smaller than the sum of its proper divisors (1509975492595800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
663260362006440 is a wasteful number, since it uses less digits than its factorization.
663260362006440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 163424 (or 163420 counting only the distinct ones).
The product of its (nonzero) digits is 4478976, while the sum is 48.
The spelling of 663260362006440 in words is "six hundred sixty-three trillion, two hundred sixty billion, three hundred sixty-two million, six thousand, four hundred forty".
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