204118651220 has 96 divisors (see below), whose sum is σ = 499347072000. Its totient is φ = 69353625600.

The previous prime is 204118651193. The next prime is 204118651283. The reversal of 204118651220 is 22156811402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318245 + ... + 713804.

It is an arithmetic number, because the mean of its divisors is an integer number (5201532000).

Almost surely, 2^204118651220 is an apocalyptic number.

204118651220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204118651220 is an abundant number, since it is smaller than the sum of its proper divisors (295228420780).

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

204118651220 is a wasteful number, since it uses less digits than its factorization.

204118651220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032129 (or 1032127 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 204118651220 in words is "two hundred four billion, one hundred eighteen million, six hundred fifty-one thousand, two hundred twenty".