18520516002 has 8 divisors (see below), whose sum is σ = 37041032016. Its totient is φ = 6173505332.

The previous prime is 18520515973. The next prime is 18520516043. The reversal of 18520516002 is 20061502581.

It is a sphenic number, since it is the product of 3 distinct primes.

18520516002 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1543376328 + ... + 1543376339.

It is an arithmetic number, because the mean of its divisors is an integer number (4630129002).

Almost surely, 2^18520516002 is an apocalyptic number.

18520516002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18520516002 is a wasteful number, since it uses less digits than its factorization.

18520516002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3086752672.

The product of its (nonzero) digits is 4800, while the sum is 30.

The spelling of 18520516002 in words is "eighteen billion, five hundred twenty million, five hundred sixteen thousand, two".