65504536465609 has 16 divisors (see below), whose sum is σ = 65957900400000. Its totient is φ = 65051913798144.

The previous prime is 65504536465597. The next prime is 65504536465661. The reversal of 65504536465609 is 90656463540556.

It is a cyclic number.

It is not a de Polignac number, because 65504536465609 - 2⁹ = 65504536465097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65504536445609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2260399482 + ... + 2260428460.

It is an arithmetic number, because the mean of its divisors is an integer number (4122368775000).

Almost surely, 2^{65504536465609} is an apocalyptic number.

It is an amenable number.

65504536465609 is a deficient number, since it is larger than the sum of its proper divisors (453363934391).

65504536465609 is a wasteful number, since it uses less digits than its factorization.

65504536465609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41232.

The product of its (nonzero) digits is 349920000, while the sum is 64.

The spelling of 65504536465609 in words is "sixty-five trillion, five hundred four billion, five hundred thirty-six million, four hundred sixty-five thousand, six hundred nine".