18188802002 has 16 divisors (see below), whose sum is σ = 31691965632. Its totient is φ = 7667410320.

The previous prime is 18188801999. The next prime is 18188802013. The reversal of 18188802002 is 20020888181.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10648328 + ... + 10650035.

It is an arithmetic number, because the mean of its divisors is an integer number (1980747852).

Almost surely, 2^18188802002 is an apocalyptic number.

18188802002 is a deficient number, since it is larger than the sum of its proper divisors (13503163630).

18188802002 is a wasteful number, since it uses less digits than its factorization.

18188802002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21298433.

The product of its (nonzero) digits is 16384, while the sum is 38.

The spelling of 18188802002 in words is "eighteen billion, one hundred eighty-eight million, eight hundred two thousand, two".