20550419100 has 54 divisors (see below), whose sum is σ = 64414149800. Its totient is φ = 5480111520.

The previous prime is 20550419059. The next prime is 20550419101. The reversal of 20550419100 is 191405502.

20550419100 is a `hidden beast` number, since 2 + 0 + 550 + 4 + 1 + 9 + 100 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20550419101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11416000 + ... + 11417799.

Almost surely, 2^20550419100 is an apocalyptic number.

20550419100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20550419100 is an abundant number, since it is smaller than the sum of its proper divisors (43863730700).

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

20550419100 is a wasteful number, since it uses less digits than its factorization.

20550419100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22833819 (or 22833809 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The spelling of 20550419100 in words is "twenty billion, five hundred fifty million, four hundred nineteen thousand, one hundred".