65561114519 has 2 divisors, whose sum is σ = 65561114520. Its totient is φ = 65561114518.

The previous prime is 65561114461. The next prime is 65561114587. The reversal of 65561114519 is 91541116556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65561114519 - 2⁸ = 65561114263 is a prime.

It is a super-2 number, since 2×65561114519² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65561114519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65561114419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32780557259 + 32780557260.

It is an arithmetic number, because the mean of its divisors is an integer number (32780557260).

Almost surely, 2^65561114519 is an apocalyptic number.

65561114519 is a deficient number, since it is larger than the sum of its proper divisors (1).

65561114519 is an equidigital number, since it uses as much as digits as its factorization.

65561114519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 44.

The spelling of 65561114519 in words is "sixty-five billion, five hundred sixty-one million, one hundred fourteen thousand, five hundred nineteen".