65107983569 has 2 divisors, whose sum is σ = 65107983570. Its totient is φ = 65107983568.

The previous prime is 65107983557. The next prime is 65107983593. The reversal of 65107983569 is 96538970156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43355568400 + 21752415169 = 208220^2 + 147487^2 .

It is a cyclic number.

It is not a de Polignac number, because 65107983569 - 2²⁰ = 65106934993 is a prime.

It is a super-2 number, since 2×65107983569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65107983509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32553991784 + 32553991785.

It is an arithmetic number, because the mean of its divisors is an integer number (32553991785).

Almost surely, 2^65107983569 is an apocalyptic number.

It is an amenable number.

65107983569 is a deficient number, since it is larger than the sum of its proper divisors (1).

65107983569 is an equidigital number, since it uses as much as digits as its factorization.

65107983569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12247200, while the sum is 59.

The spelling of 65107983569 in words is "sixty-five billion, one hundred seven million, nine hundred eighty-three thousand, five hundred sixty-nine".