206063148857 has 16 divisors (see below), whose sum is σ = 209309450112. Its totient is φ = 202843925760.

The previous prime is 206063148829. The next prime is 206063148869. The reversal of 206063148857 is 758841360602.

It is a cyclic number.

It is not a de Polignac number, because 206063148857 - 2¹² = 206063144761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206063148817) 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 15 ways as a sum of consecutive naturals, for example, 26056898 + ... + 26064804.

It is an arithmetic number, because the mean of its divisors is an integer number (13081840632).

Almost surely, 2^206063148857 is an apocalyptic number.

It is an amenable number.

206063148857 is a deficient number, since it is larger than the sum of its proper divisors (3246301255).

206063148857 is a wasteful number, since it uses less digits than its factorization.

206063148857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9568.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 206063148857 in words is "two hundred six billion, sixty-three million, one hundred forty-eight thousand, eight hundred fifty-seven".