204979698216 has 48 divisors (see below), whose sum is σ = 579290456160. Its totient is φ = 65355845280.

The previous prime is 204979698179. The next prime is 204979698221. The reversal of 204979698216 is 612896979402.

204979698216 is a `hidden beast` number, since 2 + 0 + 497 + 9 + 69 + 82 + 1 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61888350 + ... + 61891661.

It is an arithmetic number, because the mean of its divisors is an integer number (12068551170).

Almost surely, 2^204979698216 is an apocalyptic number.

It is an amenable number.

204979698216 is an abundant number, since it is smaller than the sum of its proper divisors (374310757944).

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

204979698216 is a wasteful number, since it uses less digits than its factorization.

204979698216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123780046 (or 123780039 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 63.

The spelling of 204979698216 in words is "two hundred four billion, nine hundred seventy-nine million, six hundred ninety-eight thousand, two hundred sixteen".