18066098953 has 24 divisors (see below), whose sum is σ = 21466792800. Its totient is φ = 15155155008.

The previous prime is 18066098879. The next prime is 18066098989. The reversal of 18066098953 is 35989066081.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-18066098953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18066098894 and 18066098903.

It is not an unprimeable number, because it can be changed into a prime (18066098153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 642493 + ... + 670021.

It is an arithmetic number, because the mean of its divisors is an integer number (894449700).

Almost surely, 2^18066098953 is an apocalyptic number.

It is an amenable number.

18066098953 is a deficient number, since it is larger than the sum of its proper divisors (3400693847).

18066098953 is a wasteful number, since it uses less digits than its factorization.

18066098953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27829 (or 27822 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 18066098953 in words is "eighteen billion, sixty-six million, ninety-eight thousand, nine hundred fifty-three".