204555140501111 has 4 divisors (see below), whose sum is σ = 204560257105800. Its totient is φ = 204550023896424.

The previous prime is 204555140501029. The next prime is 204555140501119. The reversal of 204555140501111 is 111105041555402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204555140501111 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 (204555140501119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2558242376 + ... + 2558322333.

It is an arithmetic number, because the mean of its divisors is an integer number (51140064276450).

Almost surely, 2^{204555140501111} is an apocalyptic number.

204555140501111 is a deficient number, since it is larger than the sum of its proper divisors (5116604689).

204555140501111 is an equidigital number, since it uses as much as digits as its factorization.

204555140501111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5116604688.

The product of its (nonzero) digits is 20000, while the sum is 35.

The spelling of 204555140501111 in words is "two hundred four trillion, five hundred fifty-five billion, one hundred forty million, five hundred one thousand, one hundred eleven".