204656236506 has 12 divisors (see below), whose sum is σ = 443421845802. Its totient is φ = 68218745496.

The previous prime is 204656236441. The next prime is 204656236537. The reversal of 204656236506 is 605632656402.

204656236506 is a `hidden beast` number, since 2 + 0 + 4 + 6 + 562 + 36 + 50 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 194340787281 + 10315449225 = 440841^2 + 101565^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5684895441 + ... + 5684895476.

Almost surely, 2^204656236506 is an apocalyptic number.

204656236506 is an abundant number, since it is smaller than the sum of its proper divisors (238765609296).

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

204656236506 is a wasteful number, since it uses less digits than its factorization.

204656236506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11369790925 (or 11369790922 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 204656236506 in words is "two hundred four billion, six hundred fifty-six million, two hundred thirty-six thousand, five hundred six".