205355510004 has 48 divisors (see below), whose sum is σ = 486478153728. Its totient is φ = 67407482208.

The previous prime is 205355509999. The next prime is 205355510029. The reversal of 205355510004 is 400015553502.

It is a happy number.

205355510004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 2437309 + ... + 2520155.

It is an arithmetic number, because the mean of its divisors is an integer number (10134961536).

Almost surely, 2^205355510004 is an apocalyptic number.

It is an amenable number.

205355510004 is an abundant number, since it is smaller than the sum of its proper divisors (281122643724).

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

205355510004 is a wasteful number, since it uses less digits than its factorization.

205355510004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86004 (or 86002 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 205355510004 in words is "two hundred five billion, three hundred fifty-five million, five hundred ten thousand, four".