20163562036 has 24 divisors (see below), whose sum is σ = 36157572360. Its totient is φ = 9832972800.

The previous prime is 20163562019. The next prime is 20163562037. The reversal of 20163562036 is 63026536102.

It can be written as a sum of positive squares in 4 ways, for example, as 2219352100 + 17944209936 = 47110^2 + 133956^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20163561992 and 20163562010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20163562037) 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 7 ways as a sum of consecutive naturals, for example, 601806 + ... + 634426.

It is an arithmetic number, because the mean of its divisors is an integer number (1506565515).

Almost surely, 2^20163562036 is an apocalyptic number.

It is an amenable number.

20163562036 is a deficient number, since it is larger than the sum of its proper divisors (15994010324).

20163562036 is a wasteful number, since it uses less digits than its factorization.

20163562036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36435 (or 36433 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The spelling of 20163562036 in words is "twenty billion, one hundred sixty-three million, five hundred sixty-two thousand, thirty-six".