20322243420550 has 24 divisors (see below), whose sum is σ = 37878285902400. Its totient is φ = 8111926800480.

The previous prime is 20322243420533. The next prime is 20322243420581. The reversal of 20322243420550 is 5502434222302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424240005 + ... + 424287904.

It is an arithmetic number, because the mean of its divisors is an integer number (1578261912600).

Almost surely, 2^{20322243420550} is an apocalyptic number.

20322243420550 is a deficient number, since it is larger than the sum of its proper divisors (17556042481850).

20322243420550 is a wasteful number, since it uses less digits than its factorization.

20322243420550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848528400 (or 848528395 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 34.

Adding to 20322243420550 its reverse (5502434222302), we get a palindrome (25824677642852).

The spelling of 20322243420550 in words is "twenty trillion, three hundred twenty-two billion, two hundred forty-three million, four hundred twenty thousand, five hundred fifty".