18756336416011 has 4 divisors (see below), whose sum is σ = 18756568259800. Its totient is φ = 18756104572224.

The previous prime is 18756336415981. The next prime is 18756336416039. The reversal of 18756336416011 is 11061463365781.

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

It is a cyclic number.

It is not a de Polignac number, because 18756336416011 - 2³¹ = 18754188932363 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 18756336416011.

It is not an unprimeable number, because it can be changed into a prime (18756336410011) 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, 115800501 + ... + 115962358.

It is an arithmetic number, because the mean of its divisors is an integer number (4689142064950).

Almost surely, 2^{18756336416011} is an apocalyptic number.

18756336416011 is a deficient number, since it is larger than the sum of its proper divisors (231843789).

18756336416011 is an equidigital number, since it uses as much as digits as its factorization.

18756336416011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231843788.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 18756336416011 in words is "eighteen trillion, seven hundred fifty-six billion, three hundred thirty-six million, four hundred sixteen thousand, eleven".