204252416634 has 24 divisors (see below), whose sum is σ = 475199500608. Its totient is φ = 58357833240.

The previous prime is 204252416567. The next prime is 204252416647. The reversal of 204252416634 is 436614252402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 204252416592 and 204252416601.

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, 347367762 + ... + 347368349.

It is an arithmetic number, because the mean of its divisors is an integer number (19799979192).

Almost surely, 2^204252416634 is an apocalyptic number.

204252416634 is an abundant number, since it is smaller than the sum of its proper divisors (270947083974).

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

204252416634 is a wasteful number, since it uses less digits than its factorization.

204252416634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694736130 (or 694736123 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 204252416634 in words is "two hundred four billion, two hundred fifty-two million, four hundred sixteen thousand, six hundred thirty-four".