65466009 has 32 divisors (see below), whose sum is σ = 113120000. Its totient is φ = 37403856.

The previous prime is 65466007. The next prime is 65466029. The reversal of 65466009 is 90066456.

It is a happy number.

65466009 is a `hidden beast` number, since 6 + 5 + 46 + 600 + 9 = 666.

It is not a de Polignac number, because 65466009 - 2¹ = 65466007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65466007) 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 31 ways as a sum of consecutive naturals, for example, 5727 + ... + 12795.

It is an arithmetic number, because the mean of its divisors is an integer number (3535000).

Almost surely, 2^65466009 is an apocalyptic number.

It is an amenable number.

65466009 is a deficient number, since it is larger than the sum of its proper divisors (47653991).

65466009 is an equidigital number, since it uses as much as digits as its factorization.

65466009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7099 (or 7079 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 65466009 is about 8091.1067846123. The cubic root of 65466009 is about 403.0311576047.

The spelling of 65466009 in words is "sixty-five million, four hundred sixty-six thousand, nine".