18585112001 has 16 divisors (see below), whose sum is σ = 19095901440. Its totient is φ = 18078091920.

The previous prime is 18585111983. The next prime is 18585112003. The reversal of 18585112001 is 10021158581.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18585112001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18585112003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18238070 + ... + 18239088.

It is an arithmetic number, because the mean of its divisors is an integer number (1193493840).

Almost surely, 2^18585112001 is an apocalyptic number.

It is an amenable number.

18585112001 is a deficient number, since it is larger than the sum of its proper divisors (510789439).

18585112001 is a wasteful number, since it uses less digits than its factorization.

18585112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396.

The product of its (nonzero) digits is 3200, while the sum is 32.

The spelling of 18585112001 in words is "eighteen billion, five hundred eighty-five million, one hundred twelve thousand, one".