206610135243 has 8 divisors (see below), whose sum is σ = 275482413888. Its totient is φ = 137738973384.

The previous prime is 206610135227. The next prime is 206610135253. The reversal of 206610135243 is 342531016602.

206610135243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206610135243 - 2⁴ = 206610135227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206610135253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364480 + ... + 738962.

It is an arithmetic number, because the mean of its divisors is an integer number (34435301736).

Almost surely, 2^206610135243 is an apocalyptic number.

206610135243 is a deficient number, since it is larger than the sum of its proper divisors (68872278645).

206610135243 is a wasteful number, since it uses less digits than its factorization.

206610135243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558393.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 206610135243 in words is "two hundred six billion, six hundred ten million, one hundred thirty-five thousand, two hundred forty-three".