206326530663 has 32 divisors (see below), whose sum is σ = 305751897600. Its totient is φ = 122713367040.

The previous prime is 206326530661. The next prime is 206326530667. The reversal of 206326530663 is 366035623602.

It is not a de Polignac number, because 206326530663 - 2¹ = 206326530661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206326530661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264195 + ... + 694587.

It is an arithmetic number, because the mean of its divisors is an integer number (9554746800).

Almost surely, 2^206326530663 is an apocalyptic number.

206326530663 is a deficient number, since it is larger than the sum of its proper divisors (99425366937).

206326530663 is a wasteful number, since it uses less digits than its factorization.

206326530663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430679.

The product of its (nonzero) digits is 699840, while the sum is 42.

The spelling of 206326530663 in words is "two hundred six billion, three hundred twenty-six million, five hundred thirty thousand, six hundred sixty-three".