20066220206 has 16 divisors (see below), whose sum is σ = 31080720768. Its totient is φ = 9706197600.

The previous prime is 20066220199. The next prime is 20066220221. The reversal of 20066220206 is 60202266002.

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, 136916 + ... + 242648.

It is an arithmetic number, because the mean of its divisors is an integer number (1942545048).

Almost surely, 2^20066220206 is an apocalyptic number.

20066220206 is a deficient number, since it is larger than the sum of its proper divisors (11014500562).

20066220206 is a wasteful number, since it uses less digits than its factorization.

20066220206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108827.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 20066220206 its reverse (60202266002), we get a palindrome (80268486208).

The spelling of 20066220206 in words is "twenty billion, sixty-six million, two hundred twenty thousand, two hundred six".