20818614226 has 16 divisors (see below), whose sum is σ = 31849201944. Its totient is φ = 10202609664.

The previous prime is 20818614211. The next prime is 20818614247. The reversal of 20818614226 is 62241681802.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20795082025 + 23532201 = 144205^2 + 4851^2 .

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, 7186 + ... + 204178.

Almost surely, 2^20818614226 is an apocalyptic number.

20818614226 is a deficient number, since it is larger than the sum of its proper divisors (11030587718).

20818614226 is a wasteful number, since it uses less digits than its factorization.

20818614226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198045.

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 20818614226 in words is "twenty billion, eight hundred eighteen million, six hundred fourteen thousand, two hundred twenty-six".