206636363625140 has 12 divisors (see below), whose sum is σ = 433936363612836. Its totient is φ = 82654545450048.

The previous prime is 206636363625077. The next prime is 206636363625143. The reversal of 206636363625140 is 41526363636602.

It can be written as a sum of positive squares in 2 ways, for example, as 141297012732964 + 65339350892176 = 11886842^2 + 8083276^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206636363625143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5165909090609 + ... + 5165909090648.

It is an arithmetic number, because the mean of its divisors is an integer number (36161363634403).

Almost surely, 2^{206636363625140} is an apocalyptic number.

206636363625140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206636363625140 is an abundant number, since it is smaller than the sum of its proper divisors (227299999987696).

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

206636363625140 is a wasteful number, since it uses less digits than its factorization.

206636363625140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10331818181266 (or 10331818181264 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 53.

The spelling of 206636363625140 in words is "two hundred six trillion, six hundred thirty-six billion, three hundred sixty-three million, six hundred twenty-five thousand, one hundred forty".