206666460053 has 8 divisors (see below), whose sum is σ = 213917023200. Its totient is φ = 199424172528.

The previous prime is 206666460029. The next prime is 206666460067. The reversal of 206666460053 is 350064666602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206666460053 - 2¹⁰ = 206666459029 is a prime.

It is a super-2 number, since 2×206666460053² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 206666459986 and 206666460013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206666460853) 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, 2018063 + ... + 2117996.

It is an arithmetic number, because the mean of its divisors is an integer number (26739627900).

Almost surely, 2^206666460053 is an apocalyptic number.

It is an amenable number.

206666460053 is a deficient number, since it is larger than the sum of its proper divisors (7250563147).

206666460053 is a wasteful number, since it uses less digits than its factorization.

206666460053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137811.

The product of its (nonzero) digits is 933120, while the sum is 44.

The spelling of 206666460053 in words is "two hundred six billion, six hundred sixty-six million, four hundred sixty thousand, fifty-three".