20288850085 has 96 divisors (see below), whose sum is σ = 31308595200. Its totient is φ = 12533512320.

The previous prime is 20288850079. The next prime is 20288850119. The reversal of 20288850085 is 58005888202.

It is not a de Polignac number, because 20288850085 - 2⁵ = 20288850053 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 95 ways as a sum of consecutive naturals, for example, 8512804 + ... + 8515186.

It is an arithmetic number, because the mean of its divisors is an integer number (326131200).

Almost surely, 2^20288850085 is an apocalyptic number.

It is an amenable number.

20288850085 is a deficient number, since it is larger than the sum of its proper divisors (11019745115).

20288850085 is a wasteful number, since it uses less digits than its factorization.

20288850085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511 (or 2504 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 46.

The spelling of 20288850085 in words is "twenty billion, two hundred eighty-eight million, eight hundred fifty thousand, eighty-five".