204011104433155 has 4 divisors (see below), whose sum is σ = 244813325319792. Its totient is φ = 163208883546520.

The previous prime is 204011104433131. The next prime is 204011104433179. The reversal of 204011104433155 is 551334401110402.

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

It is an interprime number because it is at equal distance from previous prime (204011104433131) and next prime (204011104433179).

It is not a de Polignac number, because 204011104433155 - 2³¹ = 204008956949507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204011104433155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20401110443311 + ... + 20401110443320.

It is an arithmetic number, because the mean of its divisors is an integer number (61203331329948).

Almost surely, 2^{204011104433155} is an apocalyptic number.

204011104433155 is a deficient number, since it is larger than the sum of its proper divisors (40802220886637).

204011104433155 is an equidigital number, since it uses as much as digits as its factorization.

204011104433155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40802220886636.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 204011104433155 its reverse (551334401110402), we get a palindrome (755345505543557).

The spelling of 204011104433155 in words is "two hundred four trillion, eleven billion, one hundred four million, four hundred thirty-three thousand, one hundred fifty-five".