85665533227 has 2 divisors, whose sum is σ = 85665533228. Its totient is φ = 85665533226.

The previous prime is 85665533203. The next prime is 85665533251. The reversal of 85665533227 is 72233556658.

It is a balanced prime because it is at equal distance from previous prime (85665533203) and next prime (85665533251).

It is a cyclic number.

It is not a de Polignac number, because 85665533227 - 2²³ = 85657144619 is a prime.

It is a super-3 number, since 3×85665533227³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (85665533027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42832766613 + 42832766614.

It is an arithmetic number, because the mean of its divisors is an integer number (42832766614).

Almost surely, 2^85665533227 is an apocalyptic number.

85665533227 is a deficient number, since it is larger than the sum of its proper divisors (1).

85665533227 is an equidigital number, since it uses as much as digits as its factorization.

85665533227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072000, while the sum is 52.

The spelling of 85665533227 in words is "eighty-five billion, six hundred sixty-five million, five hundred thirty-three thousand, two hundred twenty-seven".