204161904030 has 320 divisors, whose sum is σ = 605177337600. Its totient is φ = 43954928640.

The previous prime is 204161904013. The next prime is 204161904043. The reversal of 204161904030 is 30409161402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 329825061 + ... + 329825679.

It is an arithmetic number, because the mean of its divisors is an integer number (1891179180).

Almost surely, 2^204161904030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204161904030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302588668800).

204161904030 is an abundant number, since it is smaller than the sum of its proper divisors (401015433570).

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

204161904030 is a wasteful number, since it uses less digits than its factorization.

204161904030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 204161904030 in words is "two hundred four billion, one hundred sixty-one million, nine hundred four thousand, thirty".