65816072519 has 2 divisors, whose sum is σ = 65816072520. Its totient is φ = 65816072518.

The previous prime is 65816072479. The next prime is 65816072557. The reversal of 65816072519 is 91527061856.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65816072519 - 2²⁰ = 65815023943 is a prime.

It is a super-2 number, since 2×65816072519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65816072719) 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, 32908036259 + 32908036260.

It is an arithmetic number, because the mean of its divisors is an integer number (32908036260).

Almost surely, 2^65816072519 is an apocalyptic number.

65816072519 is a deficient number, since it is larger than the sum of its proper divisors (1).

65816072519 is an equidigital number, since it uses as much as digits as its factorization.

65816072519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 50.

The spelling of 65816072519 in words is "sixty-five billion, eight hundred sixteen million, seventy-two thousand, five hundred nineteen".