20620333108 has 6 divisors (see below), whose sum is σ = 36085582946. Its totient is φ = 10310166552.

The previous prime is 20620333087. The next prime is 20620333109. The reversal of 20620333108 is 80133302602.

It can be written as a sum of positive squares in only one way, i.e., 19540684944 + 1079648164 = 139788^2 + 32858^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620333109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2577541635 + ... + 2577541642.

Almost surely, 2^20620333108 is an apocalyptic number.

It is an amenable number.

20620333108 is a deficient number, since it is larger than the sum of its proper divisors (15465249838).

20620333108 is a wasteful number, since it uses less digits than its factorization.

20620333108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5155083281 (or 5155083279 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 20620333108 in words is "twenty billion, six hundred twenty million, three hundred thirty-three thousand, one hundred eight".