206003145555204 has 48 divisors (see below), whose sum is σ = 485225241092928. Its totient is φ = 68017694750208.

The previous prime is 206003145555191. The next prime is 206003145555209. The reversal of 206003145555204 is 402555541300602.

It is a super-2 number, since 2×206003145555204² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206003145555209) 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 15 ways as a sum of consecutive naturals, for example, 827544 + ... + 20314800.

It is an arithmetic number, because the mean of its divisors is an integer number (10108859189436).

Almost surely, 2^{206003145555204} is an apocalyptic number.

It is an amenable number.

206003145555204 is an abundant number, since it is smaller than the sum of its proper divisors (279222095537724).

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

206003145555204 is a wasteful number, since it uses less digits than its factorization.

206003145555204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19495604 (or 19495602 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

Adding to 206003145555204 its reverse (402555541300602), we get a palindrome (608558686855806).

The spelling of 206003145555204 in words is "two hundred six trillion, three billion, one hundred forty-five million, five hundred fifty-five thousand, two hundred four".