204340658140 has 12 divisors (see below), whose sum is σ = 429115382136. Its totient is φ = 81736263248.

The previous prime is 204340658129. The next prime is 204340658153. The reversal of 204340658140 is 41856043402.

It is a self number, because there is not a number n which added to its sum of digits gives 204340658140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5108516434 + ... + 5108516473.

It is an arithmetic number, because the mean of its divisors is an integer number (35759615178).

Almost surely, 2^204340658140 is an apocalyptic number.

204340658140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204340658140 is an abundant number, since it is smaller than the sum of its proper divisors (224774723996).

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

204340658140 is a wasteful number, since it uses less digits than its factorization.

204340658140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10217032916 (or 10217032914 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 204340658140 in words is "two hundred four billion, three hundred forty million, six hundred fifty-eight thousand, one hundred forty".