204531604654 has 32 divisors (see below), whose sum is σ = 350755665120. Its totient is φ = 88611812352.

The previous prime is 204531604621. The next prime is 204531604663. The reversal of 204531604654 is 456406135402.

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, 442959 + ... + 777994.

It is an arithmetic number, because the mean of its divisors is an integer number (10961114535).

Almost surely, 2^204531604654 is an apocalyptic number.

204531604654 is a deficient number, since it is larger than the sum of its proper divisors (146224060466).

204531604654 is a wasteful number, since it uses less digits than its factorization.

204531604654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221364.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 204531604654 in words is "two hundred four billion, five hundred thirty-one million, six hundred four thousand, six hundred fifty-four".