| Base | Representation |
|---|---|
| bin | 11110001011111111100110… |
| … | …01100000110100101000000 |
| 3 | 22201001010121102220101010100 |
| 4 | 33011333303030012211000 |
| 5 | 32200103433144031330 |
| 6 | 353103500453202400 |
| 7 | 16660666441350000 |
| oct | 1705776314064500 |
| 9 | 281033542811110 |
| 10 | 66382799595840 |
| 11 | 1a173872859702 |
| 12 | 7541521330400 |
| 13 | 2b06b42b89c80 |
| 14 | 1256d32160000 |
| 15 | 7a1b80373060 |
| hex | 3c5ff3306940 |
66382799595840 has 3360 divisors, whose sum is σ = 303329653675776. Its totient is φ = 13218911354880.
The previous prime is 66382799595821. The next prime is 66382799595887. The reversal of 66382799595840 is 4859599728366.
66382799595840 is a `hidden beast` number, since 6 + 6 + 3 + 8 + 27 + 9 + 9 + 5 + 9 + 584 + 0 = 666.
66382799595840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (3360).
It is a self number, because there is not a number n which added to its sum of digits gives 66382799595840.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 200552264475 + ... + 200552264805.
Almost surely, 266382799595840 is an apocalyptic number.
66382799595840 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 66382799595840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151664826837888).
66382799595840 is an abundant number, since it is smaller than the sum of its proper divisors (236946854079936).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
66382799595840 is a wasteful number, since it uses less digits than its factorization.
66382799595840 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 515 (or 481 counting only the distinct ones).
The product of its (nonzero) digits is 7054387200, while the sum is 81.
The spelling of 66382799595840 in words is "sixty-six trillion, three hundred eighty-two billion, seven hundred ninety-nine million, five hundred ninety-five thousand, eight hundred forty".
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