65655775317 has 16 divisors (see below), whose sum is σ = 95503868928. Its totient is φ = 39789479280.

The previous prime is 65655775303. The next prime is 65655775331. The reversal of 65655775317 is 71357755656.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65655775303) and next prime (65655775331).

It is not a de Polignac number, because 65655775317 - 2⁴ = 65655775301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65655775387) 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 15 ways as a sum of consecutive naturals, for example, 997138 + ... + 1060940.

It is an arithmetic number, because the mean of its divisors is an integer number (5968991808).

Almost surely, 2^65655775317 is an apocalyptic number.

It is an amenable number.

65655775317 is a deficient number, since it is larger than the sum of its proper divisors (29848093611).

65655775317 is a wasteful number, since it uses less digits than its factorization.

65655775317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95000.

The product of its digits is 23152500, while the sum is 57.

The spelling of 65655775317 in words is "sixty-five billion, six hundred fifty-five million, seven hundred seventy-five thousand, three hundred seventeen".