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65660006168 = 2317482794163
BaseRepresentation
bin111101001001101001…
…000010111100011000
320021110221212220120022
4331021221002330120
52033432430144133
650055213450012
74513054562261
oct751151027430
9207427786508
1065660006168
11259343a8509
12108854a0908
136265264373
14326c47b968
151a945cb998
hexf49a42f18

65660006168 has 16 divisors (see below), whose sum is σ = 130354424280. Its totient is φ = 30898826368.

The previous prime is 65660006161. The next prime is 65660006177. The reversal of 65660006168 is 86160006656.

It is a super-3 number, since 3×656600061683 (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65660006161) 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 3 ways as a sum of consecutive naturals, for example, 241396946 + ... + 241397217.

Almost surely, 265660006168 is an apocalyptic number.

65660006168 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

65660006168 is a deficient number, since it is larger than the sum of its proper divisors (64694418112).

65660006168 is a wasteful number, since it uses less digits than its factorization.

65660006168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482794186 (or 482794182 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 65660006168 in words is "sixty-five billion, six hundred sixty million, six thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 17 34 68 136 482794163 965588326 1931176652 3862353304 8207500771 16415001542 32830003084 65660006168