18085030666 has 32 divisors (see below), whose sum is σ = 28377243648. Its totient is φ = 8634377520.

The previous prime is 18085030643. The next prime is 18085030787. The reversal of 18085030666 is 66603058081.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1802235 + ... + 1812241.

It is an arithmetic number, because the mean of its divisors is an integer number (886788864).

Almost surely, 2^18085030666 is an apocalyptic number.

18085030666 is a deficient number, since it is larger than the sum of its proper divisors (10292212982).

18085030666 is a wasteful number, since it uses less digits than its factorization.

18085030666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10426.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 18085030666 in words is "eighteen billion, eighty-five million, thirty thousand, six hundred sixty-six".