204865920562 has 16 divisors (see below), whose sum is σ = 315145749600. Its totient is φ = 99827949312.

The previous prime is 204865920557. The next prime is 204865920563. The reversal of 204865920562 is 265029568402.

It is not an unprimeable number, because it can be changed into a prime (204865920563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2614128 + ... + 2691355.

It is an arithmetic number, because the mean of its divisors is an integer number (19696609350).

Almost surely, 2^204865920562 is an apocalyptic number.

204865920562 is a deficient number, since it is larger than the sum of its proper divisors (110279829038).

204865920562 is a wasteful number, since it uses less digits than its factorization.

204865920562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5305977.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 204865920562 in words is "two hundred four billion, eight hundred sixty-five million, nine hundred twenty thousand, five hundred sixty-two".