206159239972100 has 72 divisors (see below), whose sum is σ = 453881135352288. Its totient is φ = 81264596025600.

The previous prime is 206159239972057. The next prime is 206159239972157. The reversal of 206159239972100 is 1279932951602.

It is a happy 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, 3510194 + ... + 20606793.

Almost surely, 2^{206159239972100} is an apocalyptic number.

206159239972100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206159239972100 is an abundant number, since it is smaller than the sum of its proper divisors (247721895380188).

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

206159239972100 is a wasteful number, since it uses less digits than its factorization.

206159239972100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24118245 (or 24118238 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 56.

The spelling of 206159239972100 in words is "two hundred six trillion, one hundred fifty-nine billion, two hundred thirty-nine million, nine hundred seventy-two thousand, one hundred".