660006165 has 64 divisors (see below), whose sum is σ = 1309980672. Its totient is φ = 276307200.

The previous prime is 660006161. The next prime is 660006197. The reversal of 660006165 is 561600066.

660006165 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 660006165 - 2² = 660006161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660006161) 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, 176970 + ... + 180660.

It is an arithmetic number, because the mean of its divisors is an integer number (20468448).

Almost surely, 2^660006165 is an apocalyptic number.

660006165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

660006165 is a deficient number, since it is larger than the sum of its proper divisors (649974507).

660006165 is a wasteful number, since it uses less digits than its factorization.

660006165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 660006165 is about 25690.5851431998. The cubic root of 660006165 is about 870.6614800237.

The spelling of 660006165 in words is "six hundred sixty million, six thousand, one hundred sixty-five".