206040054212 has 24 divisors (see below), whose sum is σ = 362286418200. Its totient is φ = 102530002176.

The previous prime is 206040054097. The next prime is 206040054217. The reversal of 206040054212 is 212450040602.

It can be written as a sum of positive squares in 4 ways, for example, as 2797775236 + 203242278976 = 52894^2 + 450824^2 .

It is not an unprimeable number, because it can be changed into a prime (206040054217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2369114 + ... + 2454542.

It is an arithmetic number, because the mean of its divisors is an integer number (15095267425).

Almost surely, 2^206040054212 is an apocalyptic number.

It is an amenable number.

206040054212 is a deficient number, since it is larger than the sum of its proper divisors (156246363988).

206040054212 is a wasteful number, since it uses less digits than its factorization.

206040054212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88295 (or 88293 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 206040054212 its reverse (212450040602), we get a palindrome (418490094814).

The spelling of 206040054212 in words is "two hundred six billion, forty million, fifty-four thousand, two hundred twelve".