16850018518500 has 48 divisors (see below), whose sum is σ = 49067253930240. Its totient is φ = 4493338271200.

The previous prime is 16850018518439. The next prime is 16850018518517. The reversal of 16850018518500 is 581581005861.

It is a self number, because there is not a number n which added to its sum of digits gives 16850018518500.

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, 5616671340 + ... + 5616674339.

It is an arithmetic number, because the mean of its divisors is an integer number (1022234456880).

Almost surely, 2^{16850018518500} is an apocalyptic number.

16850018518500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16850018518500 is an abundant number, since it is smaller than the sum of its proper divisors (32217235411740).

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

16850018518500 is a wasteful number, since it uses less digits than its factorization.

16850018518500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11233345701 (or 11233345689 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 48.

The spelling of 16850018518500 in words is "sixteen trillion, eight hundred fifty billion, eighteen million, five hundred eighteen thousand, five hundred".