206143436034 has 72 divisors (see below), whose sum is σ = 469050096060. Its totient is φ = 65354046912.

The previous prime is 206143436017. The next prime is 206143436053. The reversal of 206143436034 is 430634341602.

206143436034 is a `hidden beast` number, since 2 + 0 + 6 + 1 + 4 + 3 + 43 + 603 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 195007910409 + 11135525625 = 441597^2 + 105525^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 206143436034.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2299272 + ... + 2387244.

Almost surely, 2^206143436034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206143436034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234525048030).

206143436034 is an abundant number, since it is smaller than the sum of its proper divisors (262906660026).

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

206143436034 is a wasteful number, since it uses less digits than its factorization.

206143436034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88144 (or 88074 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

Adding to 206143436034 its reverse (430634341602), we get a palindrome (636777777636).

The spelling of 206143436034 in words is "two hundred six billion, one hundred forty-three million, four hundred thirty-six thousand, thirty-four".