18208801018 has 16 divisors (see below), whose sum is σ = 28881941760. Its totient is φ = 8595813600.

The previous prime is 18208801007. The next prime is 18208801019. The reversal of 18208801018 is 81010880281.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18208801019) 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, 3579048 + ... + 3584131.

It is an arithmetic number, because the mean of its divisors is an integer number (1805121360).

Almost surely, 2^18208801018 is an apocalyptic number.

18208801018 is a deficient number, since it is larger than the sum of its proper divisors (10673140742).

18208801018 is a wasteful number, since it uses less digits than its factorization.

18208801018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7163253.

The product of its (nonzero) digits is 8192, while the sum is 37.

The spelling of 18208801018 in words is "eighteen billion, two hundred eight million, eight hundred one thousand, eighteen".