20268684806 has 16 divisors (see below), whose sum is σ = 31149700848. Its totient is φ = 9885532800.

The previous prime is 20268684773. The next prime is 20268684817. The reversal of 20268684806 is 60848686202.

It is a congruent number.

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, 591026 + ... + 624378.

It is an arithmetic number, because the mean of its divisors is an integer number (1946856303).

Almost surely, 2^20268684806 is an apocalyptic number.

20268684806 is a deficient number, since it is larger than the sum of its proper divisors (10881016042).

20268684806 is a wasteful number, since it uses less digits than its factorization.

20268684806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40807.

The product of its (nonzero) digits is 1769472, while the sum is 50.

The spelling of 20268684806 in words is "twenty billion, two hundred sixty-eight million, six hundred eighty-four thousand, eight hundred six".