204083568551 has 16 divisors (see below), whose sum is σ = 216475004928. Its totient is φ = 192060784800.

The previous prime is 204083568541. The next prime is 204083568593. The reversal of 204083568551 is 155865380402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204083568551 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204083568496 and 204083568505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204083568511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2168786 + ... + 2260928.

It is an arithmetic number, because the mean of its divisors is an integer number (13529687808).

Almost surely, 2^204083568551 is an apocalyptic number.

204083568551 is a deficient number, since it is larger than the sum of its proper divisors (12391436377).

204083568551 is a wasteful number, since it uses less digits than its factorization.

204083568551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94142.

The product of its (nonzero) digits is 1152000, while the sum is 47.

The spelling of 204083568551 in words is "two hundred four billion, eighty-three million, five hundred sixty-eight thousand, five hundred fifty-one".