206542159086 has 16 divisors (see below), whose sum is σ = 414094309200. Its totient is φ = 68679054528.

The previous prime is 206542159049. The next prime is 206542159097. The reversal of 206542159086 is 680951245602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42080301 + ... + 42085208.

It is an arithmetic number, because the mean of its divisors is an integer number (25880894325).

Almost surely, 2^206542159086 is an apocalyptic number.

206542159086 is an abundant number, since it is smaller than the sum of its proper divisors (207552150114).

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

206542159086 is a wasteful number, since it uses less digits than its factorization.

206542159086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84165923.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 206542159086 in words is "two hundred six billion, five hundred forty-two million, one hundred fifty-nine thousand, eighty-six".