204388044660 has 96 divisors (see below), whose sum is σ = 651383107200. Its totient is φ = 53174119680.

The previous prime is 204388044649. The next prime is 204388044667. The reversal of 204388044660 is 66440883402.

204388044660 is a `hidden beast` number, since 204 + 388 + 0 + 4 + 4 + 6 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204388044667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4593670 + ... + 4637949.

It is an arithmetic number, because the mean of its divisors is an integer number (6785240700).

Almost surely, 2^204388044660 is an apocalyptic number.

204388044660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204388044660 is an abundant number, since it is smaller than the sum of its proper divisors (446995062540).

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

204388044660 is a wasteful number, since it uses less digits than its factorization.

204388044660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9231678 (or 9231670 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 45.

The spelling of 204388044660 in words is "two hundred four billion, three hundred eighty-eight million, forty-four thousand, six hundred sixty".