204883887666 has 32 divisors (see below), whose sum is σ = 413086722048. Its totient is φ = 67741712640.

The previous prime is 204883887661. The next prime is 204883887667. The reversal of 204883887666 is 666788388402.

It is a junction number, because it is equal to n+sod(n) for n = 204883887597 and 204883887606.

It is not an unprimeable number, because it can be changed into a prime (204883887661) 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, 3676426 + ... + 3731738.

It is an arithmetic number, because the mean of its divisors is an integer number (12908960064).

Almost surely, 2^204883887666 is an apocalyptic number.

204883887666 is an abundant number, since it is smaller than the sum of its proper divisors (208202834382).

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

204883887666 is a wasteful number, since it uses less digits than its factorization.

204883887666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60306.

The product of its (nonzero) digits is 148635648, while the sum is 66.

The spelling of 204883887666 in words is "two hundred four billion, eight hundred eighty-three million, eight hundred eighty-seven thousand, six hundred sixty-six".