206203044525126 has 128 divisors (see below), whose sum is σ = 472554398462976. Its totient is φ = 59375380922880.

The previous prime is 206203044525083. The next prime is 206203044525131. The reversal of 206203044525126 is 621525440302602.

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 63 ways as a sum of consecutive naturals, for example, 324536140 + ... + 325170896.

It is an arithmetic number, because the mean of its divisors is an integer number (3691831237992).

Almost surely, 2^{206203044525126} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206203044525126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236277199231488).

206203044525126 is an abundant number, since it is smaller than the sum of its proper divisors (266351353937850).

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

206203044525126 is a wasteful number, since it uses less digits than its factorization.

206203044525126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636206.

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 206203044525126 its reverse (621525440302602), we get a palindrome (827728484827728).

The spelling of 206203044525126 in words is "two hundred six trillion, two hundred three billion, forty-four million, five hundred twenty-five thousand, one hundred twenty-six".