20858328226 has 16 divisors (see below), whose sum is σ = 31492071000. Its totient is φ = 10361171968.

The previous prime is 20858328217. The next prime is 20858328289. The reversal of 20858328226 is 62282385802.

It can be written as a sum of positive squares in 4 ways, for example, as 14929174225 + 5929154001 = 122185^2 + 77001^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159390 + ... + 259078.

Almost surely, 2^20858328226 is an apocalyptic number.

20858328226 is a deficient number, since it is larger than the sum of its proper divisors (10633742774).

20858328226 is a wasteful number, since it uses less digits than its factorization.

20858328226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100373.

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 20858328226 in words is "twenty billion, eight hundred fifty-eight million, three hundred twenty-eight thousand, two hundred twenty-six".