85502656511 has 2 divisors, whose sum is σ = 85502656512. Its totient is φ = 85502656510.

The previous prime is 85502656411. The next prime is 85502656513. The reversal of 85502656511 is 11565620558.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85502656511 is a prime.

Together with 85502656513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85502656513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42751328255 + 42751328256.

It is an arithmetic number, because the mean of its divisors is an integer number (42751328256).

Almost surely, 2^85502656511 is an apocalyptic number.

85502656511 is a deficient number, since it is larger than the sum of its proper divisors (1).

85502656511 is an equidigital number, since it uses as much as digits as its factorization.

85502656511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360000, while the sum is 44.

The spelling of 85502656511 in words is "eighty-five billion, five hundred two million, six hundred fifty-six thousand, five hundred eleven".