204720014860 has 24 divisors (see below), whose sum is σ = 430305409296. Its totient is φ = 81813076800.

The previous prime is 204720014843. The next prime is 204720014879. The reversal of 204720014860 is 68410027402.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4660666 + ... + 4704385.

It is an arithmetic number, because the mean of its divisors is an integer number (17929392054).

Almost surely, 2^204720014860 is an apocalyptic number.

204720014860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204720014860 is an abundant number, since it is smaller than the sum of its proper divisors (225585394436).

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

204720014860 is a wasteful number, since it uses less digits than its factorization.

204720014860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9366153 (or 9366151 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 204720014860 in words is "two hundred four billion, seven hundred twenty million, fourteen thousand, eight hundred sixty".