18055444908 has 12 divisors (see below), whose sum is σ = 42129371480. Its totient is φ = 6018481632.

The previous prime is 18055444903. The next prime is 18055444937. The reversal of 18055444908 is 80944455081.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (18055444903) 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, 752310193 + ... + 752310216.

Almost surely, 2^18055444908 is an apocalyptic number.

It is an amenable number.

18055444908 is an abundant number, since it is smaller than the sum of its proper divisors (24073926572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18055444908 is a wasteful number, since it uses less digits than its factorization.

18055444908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504620416 (or 1504620414 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

Adding to 18055444908 its reverse (80944455081), we get a palindrome (98999899989).

The spelling of 18055444908 in words is "eighteen billion, fifty-five million, four hundred forty-four thousand, nine hundred eight".