206139250080 has 192 divisors, whose sum is σ = 763928081280. Its totient is φ = 51736891392.

The previous prime is 206139250069. The next prime is 206139250081. The reversal of 206139250080 is 80052931602.

206139250080 is a `hidden beast` number, since 2 + 0 + 61 + 3 + 92 + 500 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (206139250081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1330014 + ... + 1476893.

It is an arithmetic number, because the mean of its divisors is an integer number (3978792090).

Almost surely, 2^206139250080 is an apocalyptic number.

206139250080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206139250080 is an abundant number, since it is smaller than the sum of its proper divisors (557788831200).

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

206139250080 is a wasteful number, since it uses less digits than its factorization.

206139250080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806948 (or 2806934 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 206139250080 in words is "two hundred six billion, one hundred thirty-nine million, two hundred fifty thousand, eighty".