18066071248 has 20 divisors (see below), whose sum is σ = 35054283168. Its totient is φ = 9019804640.

The previous prime is 18066071239. The next prime is 18066071249. The reversal of 18066071248 is 84217066081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18066071249) 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, 815668 + ... + 837523.

Almost surely, 2^18066071248 is an apocalyptic number.

It is an amenable number.

18066071248 is a deficient number, since it is larger than the sum of its proper divisors (16988211920).

18066071248 is a wasteful number, since it uses less digits than its factorization.

18066071248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653882 (or 1653876 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 18066071248 in words is "eighteen billion, sixty-six million, seventy-one thousand, two hundred forty-eight".