20662362826 has 12 divisors (see below), whose sum is σ = 36053714898. Its totient is φ = 8855298312.

The previous prime is 20662362821. The next prime is 20662362841. The reversal of 20662362826 is 62826326602.

It can be written as a sum of positive squares in only one way, i.e., 14232728601 + 6429634225 = 119301^2 + 80185^2 .

It is a super-3 number, since 3×20662362826³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20662362821) 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 in 5 ways as a sum of consecutive naturals, for example, 105420121 + ... + 105420316.

Almost surely, 2^20662362826 is an apocalyptic number.

20662362826 is a deficient number, since it is larger than the sum of its proper divisors (15391352072).

20662362826 is a wasteful number, since it uses less digits than its factorization.

20662362826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210840453 (or 210840446 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 20662362826 in words is "twenty billion, six hundred sixty-two million, three hundred sixty-two thousand, eight hundred twenty-six".