20063653232550 has 24 divisors (see below), whose sum is σ = 49757860017096. Its totient is φ = 5350307528640.

The previous prime is 20063653232533. The next prime is 20063653232563. The reversal of 20063653232550 is 5523235636002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66878843959 + ... + 66878844258.

It is an arithmetic number, because the mean of its divisors is an integer number (2073244167379).

Almost surely, 2^{20063653232550} is an apocalyptic number.

20063653232550 is an abundant number, since it is smaller than the sum of its proper divisors (29694206784546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20063653232550 is a wasteful number, since it uses less digits than its factorization.

20063653232550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133757688232 (or 133757688227 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 42.

Adding to 20063653232550 its reverse (5523235636002), we get a palindrome (25586888868552).

The spelling of 20063653232550 in words is "twenty trillion, sixty-three billion, six hundred fifty-three million, two hundred thirty-two thousand, five hundred fifty".