204150540055 has 128 divisors (see below), whose sum is σ = 322486272000. Its totient is φ = 120353210880.

The previous prime is 204150540043. The next prime is 204150540059. The reversal of 204150540055 is 550045051402.

It is not a de Polignac number, because 204150540055 - 2¹⁹ = 204150015767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204150539999 and 204150540026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204150540059) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 315533742 + ... + 315534388.

It is an arithmetic number, because the mean of its divisors is an integer number (2519424000).

Almost surely, 2^204150540055 is an apocalyptic number.

204150540055 is a deficient number, since it is larger than the sum of its proper divisors (118335731945).

204150540055 is a wasteful number, since it uses less digits than its factorization.

204150540055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237.

The product of its (nonzero) digits is 20000, while the sum is 31.

Adding to 204150540055 its reverse (550045051402), we get a palindrome (754195591457).

The spelling of 204150540055 in words is "two hundred four billion, one hundred fifty million, five hundred forty thousand, fifty-five".