65744116665 has 16 divisors (see below), whose sum is σ = 109764091008. Its totient is φ = 33539027456.

The previous prime is 65744116649. The next prime is 65744116687. The reversal of 65744116665 is 56661144756.

It is a cyclic number.

It is not a de Polignac number, because 65744116665 - 2⁴ = 65744116649 is a prime.

It is a super-2 number, since 2×65744116665² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95280984 + ... + 95281673.

It is an arithmetic number, because the mean of its divisors is an integer number (6860255688).

Almost surely, 2^65744116665 is an apocalyptic number.

It is an amenable number.

65744116665 is a deficient number, since it is larger than the sum of its proper divisors (44019974343).

65744116665 is a wasteful number, since it uses less digits than its factorization.

65744116665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190562688.

The product of its digits is 3628800, while the sum is 51.

The spelling of 65744116665 in words is "sixty-five billion, seven hundred forty-four million, one hundred sixteen thousand, six hundred sixty-five".