65660006 has 8 divisors (see below), whose sum is σ = 99361944. Its totient is φ = 32539360.

The previous prime is 65660003. The next prime is 65660027. The reversal of 65660006 is 60006656.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×65660006² = 8622472775840072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65660003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145040 + ... + 145491.

It is an arithmetic number, because the mean of its divisors is an integer number (12420243).

Almost surely, 2^65660006 is an apocalyptic number.

65660006 is a deficient number, since it is larger than the sum of its proper divisors (33701938).

65660006 is a wasteful number, since it uses less digits than its factorization.

65660006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290646.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 65660006 is about 8103.0862021825. The cubic root of 65660006 is about 403.4288689901.

The spelling of 65660006 in words is "sixty-five million, six hundred sixty thousand, six".