204668883693 has 6 divisors (see below), whose sum is σ = 295632832014. Its totient is φ = 136445922456.

The previous prime is 204668883659. The next prime is 204668883697. The reversal of 204668883693 is 396388866402.

204668883693 is a `hidden beast` number, since 2 + 0 + 466 + 8 + 8 + 83 + 6 + 93 = 666.

It can be written as a sum of positive squares in only one way, i.e., 125998731369 + 78670152324 = 354963^2 + 280482^2 .

It is not a de Polignac number, because 204668883693 - 2¹⁴ = 204668867309 is a prime.

It is a super-2 number, since 2×204668883693² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204668883693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204668883697) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11370493530 + ... + 11370493547.

It is an arithmetic number, because the mean of its divisors is an integer number (49272138669).

Almost surely, 2^204668883693 is an apocalyptic number.

It is an amenable number.

204668883693 is a deficient number, since it is larger than the sum of its proper divisors (90963948321).

204668883693 is a wasteful number, since it uses less digits than its factorization.

204668883693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22740987083 (or 22740987080 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 63.

The spelling of 204668883693 in words is "two hundred four billion, six hundred sixty-eight million, eight hundred eighty-three thousand, six hundred ninety-three".