20055303686 has 32 divisors (see below), whose sum is σ = 33523269120. Its totient is φ = 8921953600.

The previous prime is 20055303641. The next prime is 20055303691. The reversal of 20055303686 is 68630355002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167135 + ... + 260853.

It is an arithmetic number, because the mean of its divisors is an integer number (1047602160).

Almost surely, 2^20055303686 is an apocalyptic number.

20055303686 is a deficient number, since it is larger than the sum of its proper divisors (13467965434).

20055303686 is a wasteful number, since it uses less digits than its factorization.

20055303686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93940.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 20055303686 its reverse (68630355002), we get a palindrome (88685658688).

The spelling of 20055303686 in words is "twenty billion, fifty-five million, three hundred three thousand, six hundred eighty-six".