206928535158 has 24 divisors (see below), whose sum is σ = 474718404888. Its totient is φ = 64918756032.

The previous prime is 206928535157. The next prime is 206928535183. The reversal of 206928535158 is 851535829602.

It is a happy number.

206928535158 is a `hidden beast` number, since 2 + 0 + 6 + 9 + 285 + 351 + 5 + 8 = 666.

206928535158 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206928535153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338118216 + ... + 338118827.

It is an arithmetic number, because the mean of its divisors is an integer number (19779933537).

Almost surely, 2^206928535158 is an apocalyptic number.

206928535158 is an abundant number, since it is smaller than the sum of its proper divisors (267789869730).

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

206928535158 is a wasteful number, since it uses less digits than its factorization.

206928535158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676237068 (or 676237065 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 54.

The spelling of 206928535158 in words is "two hundred six billion, nine hundred twenty-eight million, five hundred thirty-five thousand, one hundred fifty-eight".