65980935239 has 2 divisors, whose sum is σ = 65980935240. Its totient is φ = 65980935238.

The previous prime is 65980935217. The next prime is 65980935269. The reversal of 65980935239 is 93253908956.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65980935239 is a prime.

It is a super-2 number, since 2×65980935239² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65980935269) 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 as a sum of consecutive naturals, namely, 32990467619 + 32990467620.

It is an arithmetic number, because the mean of its divisors is an integer number (32990467620).

Almost surely, 2^65980935239 is an apocalyptic number.

65980935239 is a deficient number, since it is larger than the sum of its proper divisors (1).

65980935239 is an equidigital number, since it uses as much as digits as its factorization.

65980935239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15746400, while the sum is 59.

The spelling of 65980935239 in words is "sixty-five billion, nine hundred eighty million, nine hundred thirty-five thousand, two hundred thirty-nine".