20168552050 has 12 divisors (see below), whose sum is σ = 37513506906. Its totient is φ = 8067420800.

The previous prime is 20168552039. The next prime is 20168552059. The reversal of 20168552050 is 5025586102.

It can be written as a sum of positive squares in 3 ways, for example, as 18048041649 + 2120510401 = 134343^2 + 46049^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20168551997 and 20168552015.

It is not an unprimeable number, because it can be changed into a prime (20168552059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201685471 + ... + 201685570.

Almost surely, 2^20168552050 is an apocalyptic number.

20168552050 is a deficient number, since it is larger than the sum of its proper divisors (17344954856).

20168552050 is a wasteful number, since it uses less digits than its factorization.

20168552050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403371053 (or 403371048 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 20168552050 in words is "twenty billion, one hundred sixty-eight million, five hundred fifty-two thousand, fifty".