204689966250 has 1280 divisors, whose sum is σ = 738483609600. Its totient is φ = 37255680000.

The previous prime is 204689966231. The next prime is 204689966333. The reversal of 204689966250 is 52669986402.

It is a happy number.

It is a super-2 number, since 2×204689966250² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 5532161232 + ... + 5532161268.

It is an arithmetic number, because the mean of its divisors is an integer number (576940320).

Almost surely, 2^204689966250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204689966250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369241804800).

204689966250 is an abundant number, since it is smaller than the sum of its proper divisors (533793643350).

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

204689966250 is a wasteful number, since it uses less digits than its factorization.

204689966250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 105 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 204689966250 in words is "two hundred four billion, six hundred eighty-nine million, nine hundred sixty-six thousand, two hundred fifty".