85565435305 has 16 divisors (see below), whose sum is σ = 117555341184. Its totient is φ = 58569212160.

The previous prime is 85565435273. The next prime is 85565435359. The reversal of 85565435305 is 50353456558.

It is not a de Polignac number, because 85565435305 - 2⁵ = 85565435273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2151456 + ... + 2190865.

It is an arithmetic number, because the mean of its divisors is an integer number (7347208824).

Almost surely, 2^85565435305 is an apocalyptic number.

It is an amenable number.

85565435305 is a deficient number, since it is larger than the sum of its proper divisors (31989905879).

85565435305 is a wasteful number, since it uses less digits than its factorization.

85565435305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342896.

The product of its (nonzero) digits is 5400000, while the sum is 49.

The spelling of 85565435305 in words is "eighty-five billion, five hundred sixty-five million, four hundred thirty-five thousand, three hundred five".