551666600206 has 16 divisors (see below), whose sum is σ = 860816710800. Its totient is φ = 264833970688.

The previous prime is 551666600203. The next prime is 551666600207. The reversal of 551666600206 is 602006666155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551666600203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26558035 + ... + 26578798.

It is an arithmetic number, because the mean of its divisors is an integer number (53801044425).

Almost surely, 2^551666600206 is an apocalyptic number.

551666600206 is a deficient number, since it is larger than the sum of its proper divisors (309150110594).

551666600206 is a wasteful number, since it uses less digits than its factorization.

551666600206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53137043.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 551666600206 in words is "five hundred fifty-one billion, six hundred sixty-six million, six hundred thousand, two hundred six".