20163114421550 has 24 divisors (see below), whose sum is σ = 37503590241600. Its totient is φ = 8065203313280.

The previous prime is 20163114421529. The next prime is 20163114421559. The reversal of 20163114421550 is 5512441136102.

It is a happy number.

It is a super-3 number, since 3×20163114421550³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20163114421550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20163114421559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9590531 + ... + 11502369.

It is an arithmetic number, because the mean of its divisors is an integer number (1562649593400).

Almost surely, 2^{20163114421550} is an apocalyptic number.

20163114421550 is a deficient number, since it is larger than the sum of its proper divisors (17340475820050).

20163114421550 is a wasteful number, since it uses less digits than its factorization.

20163114421550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122780 (or 2122775 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

Adding to 20163114421550 its reverse (5512441136102), we get a palindrome (25675555557652).

The spelling of 20163114421550 in words is "twenty trillion, one hundred sixty-three billion, one hundred fourteen million, four hundred twenty-one thousand, five hundred fifty".