16650486818 has 16 divisors (see below), whose sum is σ = 29464456704. Its totient is φ = 6905731680.

The previous prime is 16650486779. The next prime is 16650486859. The reversal of 16650486818 is 81868405661.

It is a super-2 number, since 2×16650486818² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 16650486818.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19182155 + ... + 19183022.

It is an arithmetic number, because the mean of its divisors is an integer number (1841528544).

Almost surely, 2^16650486818 is an apocalyptic number.

16650486818 is a deficient number, since it is larger than the sum of its proper divisors (12813969886).

16650486818 is a wasteful number, since it uses less digits than its factorization.

16650486818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38365217.

The product of its (nonzero) digits is 2211840, while the sum is 53.

The spelling of 16650486818 in words is "sixteen billion, six hundred fifty million, four hundred eighty-six thousand, eight hundred eighteen".