20355644032036 has 12 divisors (see below), whose sum is σ = 35622446570928. Its totient is φ = 10177802154632.

The previous prime is 20355644032019. The next prime is 20355644032091. The reversal of 20355644032036 is 63023044655302.

It is a junction number, because it is equal to n+sod(n) for n = 20355644031983 and 20355644032001.

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 3 ways as a sum of consecutive naturals, for example, 2526226 + ... + 6862441.

It is an arithmetic number, because the mean of its divisors is an integer number (2968537214244).

Almost surely, 2^{20355644032036} is an apocalyptic number.

It is an amenable number.

20355644032036 is a deficient number, since it is larger than the sum of its proper divisors (15266802538892).

20355644032036 is a wasteful number, since it uses less digits than its factorization.

20355644032036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9930698 (or 9930696 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 43.

Adding to 20355644032036 its reverse (63023044655302), we get a palindrome (83378688687338).

The spelling of 20355644032036 in words is "twenty trillion, three hundred fifty-five billion, six hundred forty-four million, thirty-two thousand, thirty-six".