18066395853 has 96 divisors (see below), whose sum is σ = 30332390400. Its totient is φ = 10258099200.

The previous prime is 18066395813. The next prime is 18066395861. The reversal of 18066395853 is 35859366081.

It is not a de Polignac number, because 18066395853 - 2¹⁴ = 18066379469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18066395853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18066395813) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44171913 + ... + 44172321.

It is an arithmetic number, because the mean of its divisors is an integer number (315962400).

Almost surely, 2^18066395853 is an apocalyptic number.

It is an amenable number.

18066395853 is a deficient number, since it is larger than the sum of its proper divisors (12265994547).

18066395853 is a wasteful number, since it uses less digits than its factorization.

18066395853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 880 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 18066395853 in words is "eighteen billion, sixty-six million, three hundred ninety-five thousand, eight hundred fifty-three".