206236405300 has 72 divisors (see below), whose sum is σ = 459752398616. Its totient is φ = 80243343360.

The previous prime is 206236405283. The next prime is 206236405321. The reversal of 206236405300 is 3504632602.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 51461829904 + 154774575396 = 226852^2 + 393414^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24685924 + ... + 24694276.

Almost surely, 2^206236405300 is an apocalyptic number.

206236405300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206236405300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229876199308).

206236405300 is an abundant number, since it is smaller than the sum of its proper divisors (253515993316).

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

206236405300 is a wasteful number, since it uses less digits than its factorization.

206236405300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15077 (or 15070 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 206236405300 in words is "two hundred six billion, two hundred thirty-six million, four hundred five thousand, three hundred".