20550433200 has 240 divisors, whose sum is σ = 74132493312. Its totient is φ = 4821120000.

The previous prime is 20550433199. The next prime is 20550433259. The reversal of 20550433200 is 233405502.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 384090 + ... + 434310.

Almost surely, 2^20550433200 is an apocalyptic number.

20550433200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20550433200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37066246656).

20550433200 is an abundant number, since it is smaller than the sum of its proper divisors (53582060112).

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

20550433200 is a wasteful number, since it uses less digits than its factorization.

20550433200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50284 (or 50273 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 20550433200 its reverse (233405502), we get a palindrome (20783838702).

It can be divided in two parts, 205 and 50433200, that added together give a palindrome (50433405).

The spelling of 20550433200 in words is "twenty billion, five hundred fifty million, four hundred thirty-three thousand, two hundred".