204115300551 has 6 divisors (see below), whose sum is σ = 294833211920. Its totient is φ = 136076867028.

The previous prime is 204115300471. The next prime is 204115300607. The reversal of 204115300551 is 155003511402.

204115300551 is a `hidden beast` number, since 20 + 41 + 1 + 53 + 0 + 0 + 551 = 666.

It is not a de Polignac number, because 204115300551 - 2¹⁰ = 204115299527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204115300751) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11339738911 + ... + 11339738928.

Almost surely, 2^204115300551 is an apocalyptic number.

204115300551 is a deficient number, since it is larger than the sum of its proper divisors (90717911369).

204115300551 is a wasteful number, since it uses less digits than its factorization.

204115300551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22679477845 (or 22679477842 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 204115300551 its reverse (155003511402), we get a palindrome (359118811953).

The spelling of 204115300551 in words is "two hundred four billion, one hundred fifteen million, three hundred thousand, five hundred fifty-one".