85205650258 has 16 divisors (see below), whose sum is σ = 135350840160. Its totient is φ = 40089600576.

The previous prime is 85205650223. The next prime is 85205650267.

85205650258 is nontrivially palindromic in base 10.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 29016 + ... + 413827.

It is an arithmetic number, because the mean of its divisors is an integer number (8459427510).

Almost surely, 2^85205650258 is an apocalyptic number.

85205650258 is a deficient number, since it is larger than the sum of its proper divisors (50145189902).

85205650258 is a wasteful number, since it uses less digits than its factorization.

85205650258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448521.

The product of its (nonzero) digits is 960000, while the sum is 46.

The spelling of 85205650258 in words is "eighty-five billion, two hundred five million, six hundred fifty thousand, two hundred fifty-eight".