204668866402 has 32 divisors (see below), whose sum is σ = 412200238464. Its totient is φ = 73607184000.

The previous prime is 204668866387. The next prime is 204668866403.

204668866402 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 204668866402.

It is not an unprimeable number, because it can be changed into a prime (204668866403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51114099 + ... + 51118102.

It is an arithmetic number, because the mean of its divisors is an integer number (12881257452).

Almost surely, 2^204668866402 is an apocalyptic number.

204668866402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

204668866402 is an abundant number, since it is smaller than the sum of its proper divisors (207531372062).

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

204668866402 is a wasteful number, since it uses less digits than its factorization.

204668866402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102232234.

The product of its (nonzero) digits is 5308416, while the sum is 52.

The spelling of 204668866402 in words is "two hundred four billion, six hundred sixty-eight million, eight hundred sixty-six thousand, four hundred two".