206000211550 has 36 divisors (see below), whose sum is σ = 445717197720. Its totient is φ = 70628643120.

The previous prime is 206000211539. The next prime is 206000211563. The reversal of 206000211550 is 55112000602.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 42038410 + ... + 42043309.

It is an arithmetic number, because the mean of its divisors is an integer number (12381033270).

Almost surely, 2^206000211550 is an apocalyptic number.

206000211550 is an abundant number, since it is smaller than the sum of its proper divisors (239716986170).

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

206000211550 is a wasteful number, since it uses less digits than its factorization.

206000211550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84081745 (or 84081733 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The spelling of 206000211550 in words is "two hundred six billion, two hundred eleven thousand, five hundred fifty".