65585784201 has 16 divisors (see below), whose sum is σ = 105200256000. Its totient is φ = 35505085968.

The previous prime is 65585784197. The next prime is 65585784211. The reversal of 65585784201 is 10248758556.

It is not a de Polignac number, because 65585784201 - 2² = 65585784197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65585784211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82187301 + ... + 82188098.

It is an arithmetic number, because the mean of its divisors is an integer number (6575016000).

Almost surely, 2^65585784201 is an apocalyptic number.

It is an amenable number.

65585784201 is a deficient number, since it is larger than the sum of its proper divisors (39614471799).

65585784201 is a wasteful number, since it uses less digits than its factorization.

65585784201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164375428.

The product of its (nonzero) digits is 2688000, while the sum is 51.

The spelling of 65585784201 in words is "sixty-five billion, five hundred eighty-five million, seven hundred eighty-four thousand, two hundred one".