65383067657 has 4 divisors (see below), whose sum is σ = 65384588100. Its totient is φ = 65381547216.

The previous prime is 65383067641. The next prime is 65383067681. The reversal of 65383067657 is 75676038356.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56744480521 + 8638587136 = 238211^2 + 92944^2 .

It is a cyclic number.

It is not a de Polignac number, because 65383067657 - 2⁴ = 65383067641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65383067257) 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, 693782 + ... + 782367.

It is an arithmetic number, because the mean of its divisors is an integer number (16346147025).

Almost surely, 2^65383067657 is an apocalyptic number.

It is an amenable number.

65383067657 is a deficient number, since it is larger than the sum of its proper divisors (1520443).

65383067657 is a wasteful number, since it uses less digits than its factorization.

65383067657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520442.

The product of its (nonzero) digits is 19051200, while the sum is 56.

The spelling of 65383067657 in words is "sixty-five billion, three hundred eighty-three million, sixty-seven thousand, six hundred fifty-seven".