206505060004 has 12 divisors (see below), whose sum is σ = 361436407024. Its totient is φ = 103237515144.

The previous prime is 206505060001. The next prime is 206505060023. The reversal of 206505060004 is 400060505602.

It is not an unprimeable number, because it can be changed into a prime (206505060001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3722742 + ... + 3777805.

Almost surely, 2^206505060004 is an apocalyptic number.

It is an amenable number.

206505060004 is a deficient number, since it is larger than the sum of its proper divisors (154931347020).

206505060004 is a wasteful number, since it uses less digits than its factorization.

206505060004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7507434 (or 7507432 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 206505060004 its reverse (400060505602), we get a palindrome (606565565606).

The spelling of 206505060004 in words is "two hundred six billion, five hundred five million, sixty thousand, four".