1806233605111 has 8 divisors (see below), whose sum is σ = 1990411272080. Its totient is φ = 1628518312512.

The previous prime is 1806233605103. The next prime is 1806233605129. The reversal of 1806233605111 is 1115063326081.

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

It is not a de Polignac number, because 1806233605111 - 2³ = 1806233605103 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 (1806233605181) 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, 1615593006 + ... + 1615594123.

It is an arithmetic number, because the mean of its divisors is an integer number (248801409010).

Almost surely, 2^{1806233605111} is an apocalyptic number.

1806233605111 is a deficient number, since it is larger than the sum of its proper divisors (184177666969).

1806233605111 is a wasteful number, since it uses less digits than its factorization.

1806233605111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3231187185.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 1806233605111 in words is "one trillion, eight hundred six billion, two hundred thirty-three million, six hundred five thousand, one hundred eleven".