204921035555852 has 48 divisors (see below), whose sum is σ = 447322108627968. Its totient is φ = 79799781035520.

The previous prime is 204921035555833. The next prime is 204921035555869. The reversal of 204921035555852 is 258555530129402.

It is a super-2 number, since 2×204921035555852² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164308868 + ... + 165551339.

It is an arithmetic number, because the mean of its divisors is an integer number (9319210596416).

Almost surely, 2^{204921035555852} is an apocalyptic number.

204921035555852 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

204921035555852 is an abundant number, since it is smaller than the sum of its proper divisors (242401073072116).

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

204921035555852 is a wasteful number, since it uses less digits than its factorization.

204921035555852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329862246 (or 329862244 counting only the distinct ones).

The product of its (nonzero) digits is 21600000, while the sum is 56.

The spelling of 204921035555852 in words is "two hundred four trillion, nine hundred twenty-one billion, thirty-five million, five hundred fifty-five thousand, eight hundred fifty-two".