204371102840 has 64 divisors (see below), whose sum is σ = 472343477760. Its totient is φ = 79525463040.

The previous prime is 204371102807. The next prime is 204371102857. The reversal of 204371102840 is 48201173402.

It is a junction number, because it is equal to n+sod(n) for n = 204371102797 and 204371102806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16378844 + ... + 16391316.

It is an arithmetic number, because the mean of its divisors is an integer number (7380366840).

Almost surely, 2^204371102840 is an apocalyptic number.

204371102840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204371102840 is an abundant number, since it is smaller than the sum of its proper divisors (267972374920).

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

204371102840 is a wasteful number, since it uses less digits than its factorization.

204371102840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23592 (or 23588 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 204371102840 in words is "two hundred four billion, three hundred seventy-one million, one hundred two thousand, eight hundred forty".