204006540247 has 8 divisors (see below), whose sum is σ = 211461210752. Its totient is φ = 196606483200.

The previous prime is 204006540211. The next prime is 204006540277. The reversal of 204006540247 is 742045600402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204006540247 - 2³⁵ = 169646801879 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 (204006540277) 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, 13645758 + ... + 13660699.

It is an arithmetic number, because the mean of its divisors is an integer number (26432651344).

Almost surely, 2^204006540247 is an apocalyptic number.

204006540247 is a deficient number, since it is larger than the sum of its proper divisors (7454670505).

204006540247 is a wasteful number, since it uses less digits than its factorization.

204006540247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27306729.

The product of its (nonzero) digits is 53760, while the sum is 34.

The spelling of 204006540247 in words is "two hundred four billion, six million, five hundred forty thousand, two hundred forty-seven".