206616665141 has 16 divisors (see below), whose sum is σ = 224731968384. Its totient is φ = 189421809984.

The previous prime is 206616665093. The next prime is 206616665149. The reversal of 206616665141 is 141566616602.

It is a cyclic number.

It is not a de Polignac number, because 206616665141 - 2⁶ = 206616665077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 206616665092 and 206616665101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206616665149) 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, 1754870 + ... + 1868903.

It is an arithmetic number, because the mean of its divisors is an integer number (14045748024).

Almost surely, 2^206616665141 is an apocalyptic number.

It is an amenable number.

206616665141 is a deficient number, since it is larger than the sum of its proper divisors (18115303243).

206616665141 is a wasteful number, since it uses less digits than its factorization.

206616665141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623900.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 206616665141 in words is "two hundred six billion, six hundred sixteen million, six hundred sixty-five thousand, one hundred forty-one".