206105435033 has 16 divisors (see below), whose sum is σ = 217372170240. Its totient is φ = 195035859216.

The previous prime is 206105435017. The next prime is 206105435093. The reversal of 206105435033 is 330534501602.

It is a cyclic number.

It is not a de Polignac number, because 206105435033 - 2⁴ = 206105435017 is a prime.

It is a super-2 number, since 2×206105435033² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206105435093) 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, 1762016 + ... + 1875342.

It is an arithmetic number, because the mean of its divisors is an integer number (13585760640).

Almost surely, 2^206105435033 is an apocalyptic number.

206105435033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

206105435033 is a deficient number, since it is larger than the sum of its proper divisors (11266735207).

206105435033 is a wasteful number, since it uses less digits than its factorization.

206105435033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114196.

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 206105435033 its reverse (330534501602), we get a palindrome (536639936635).

The spelling of 206105435033 in words is "two hundred six billion, one hundred five million, four hundred thirty-five thousand, thirty-three".