1818500616011 has 8 divisors (see below), whose sum is σ = 1829822593104. Its totient is φ = 1807180657920.

The previous prime is 1818500615977. The next prime is 1818500616019. The reversal of 1818500616011 is 1106160058181.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1818500616011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1818500616019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322771 + ... + 2320931.

It is an arithmetic number, because the mean of its divisors is an integer number (228727824138).

Almost surely, 2^{1818500616011} is an apocalyptic number.

1818500616011 is a deficient number, since it is larger than the sum of its proper divisors (11321977093).

1818500616011 is a wasteful number, since it uses less digits than its factorization.

1818500616011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009501.

The product of its (nonzero) digits is 11520, while the sum is 38.

The spelling of 1818500616011 in words is "one trillion, eight hundred eighteen billion, five hundred million, six hundred sixteen thousand, eleven".