20606320202 has 32 divisors (see below), whose sum is σ = 33846180480. Its totient is φ = 9351599040.

The previous prime is 20606320193. The next prime is 20606320219. The reversal of 20606320202 is 20202360602.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 684908 + ... + 714360.

It is an arithmetic number, because the mean of its divisors is an integer number (1057693140).

Almost surely, 2^20606320202 is an apocalyptic number.

20606320202 is a deficient number, since it is larger than the sum of its proper divisors (13239860278).

20606320202 is a wasteful number, since it uses less digits than its factorization.

20606320202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29918.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20606320202 its reverse (20202360602), we get a palindrome (40808680804).

The spelling of 20606320202 in words is "twenty billion, six hundred six million, three hundred twenty thousand, two hundred two".