206065664504 has 32 divisors (see below), whose sum is σ = 445941266400. Its totient is φ = 87439459200.

The previous prime is 206065664503. The next prime is 206065664549. The reversal of 206065664504 is 405466560602.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206065664503) 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, 18210899 + ... + 18222210.

It is an arithmetic number, because the mean of its divisors is an integer number (13935664575).

Almost surely, 2^206065664504 is an apocalyptic number.

It is an amenable number.

206065664504 is an abundant number, since it is smaller than the sum of its proper divisors (239875601896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206065664504 is a wasteful number, since it uses less digits than its factorization.

206065664504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36433223 (or 36433219 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 206065664504 in words is "two hundred six billion, sixty-five million, six hundred sixty-four thousand, five hundred four".