204666600660 has 24 divisors (see below), whose sum is σ = 573066482016. Its totient is φ = 54577760160.

The previous prime is 204666600647. The next prime is 204666600673. The reversal of 204666600660 is 66006666402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (204666600647) and next prime (204666600673).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1705554946 + ... + 1705555065.

It is an arithmetic number, because the mean of its divisors is an integer number (23877770084).

Almost surely, 2^204666600660 is an apocalyptic number.

204666600660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204666600660 is an abundant number, since it is smaller than the sum of its proper divisors (368399881356).

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

204666600660 is a wasteful number, since it uses less digits than its factorization.

204666600660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411110023 (or 3411110021 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 204666600660 in words is "two hundred four billion, six hundred sixty-six million, six hundred thousand, six hundred sixty".