206626136143 has 16 divisors (see below), whose sum is σ = 253861585920. Its totient is φ = 164216703456.

The previous prime is 206626136111. The next prime is 206626136177. The reversal of 206626136143 is 341631626602.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 206626136143 - 2⁵ = 206626136111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206626136096 and 206626136105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206626136543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16521196 + ... + 16533697.

It is an arithmetic number, because the mean of its divisors is an integer number (15866349120).

Almost surely, 2^206626136143 is an apocalyptic number.

206626136143 is a deficient number, since it is larger than the sum of its proper divisors (47235449777).

206626136143 is a wasteful number, since it uses less digits than its factorization.

206626136143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33054966.

The product of its (nonzero) digits is 186624, while the sum is 40.

The spelling of 206626136143 in words is "two hundred six billion, six hundred twenty-six million, one hundred thirty-six thousand, one hundred forty-three".