206130664142 has 64 divisors (see below), whose sum is σ = 344659069440. Its totient is φ = 91867336704.

The previous prime is 206130664123. The next prime is 206130664171. The reversal of 206130664142 is 241466031602.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 27345398 + ... + 27352934.

It is an arithmetic number, because the mean of its divisors is an integer number (5385297960).

Almost surely, 2^206130664142 is an apocalyptic number.

206130664142 is a deficient number, since it is larger than the sum of its proper divisors (138528405298).

206130664142 is a wasteful number, since it uses less digits than its factorization.

206130664142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7917.

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 206130664142 its reverse (241466031602), we get a palindrome (447596695744).

The spelling of 206130664142 in words is "two hundred six billion, one hundred thirty million, six hundred sixty-four thousand, one hundred forty-two".