204852385816 has 32 divisors (see below), whose sum is σ = 424823822640. Its totient is φ = 91991922048.

The previous prime is 204852385799. The next prime is 204852385897. The reversal of 204852385816 is 618583258402.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52).

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, 26614186 + ... + 26621881.

Almost surely, 2^204852385816 is an apocalyptic number.

204852385816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

204852385816 is an abundant number, since it is smaller than the sum of its proper divisors (219971436824).

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

204852385816 is a wasteful number, since it uses less digits than its factorization.

204852385816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53236123 (or 53236119 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 52.

The spelling of 204852385816 in words is "two hundred four billion, eight hundred fifty-two million, three hundred eighty-five thousand, eight hundred sixteen".