16863218716 has 12 divisors (see below), whose sum is σ = 30308217688. Its totient is φ = 8203727952.

The previous prime is 16863218699. The next prime is 16863218717. The reversal of 16863218716 is 61781236861.

It is a happy number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 16863218716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16863218717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56970186 + ... + 56970481.

Almost surely, 2^16863218716 is an apocalyptic number.

It is an amenable number.

16863218716 is a deficient number, since it is larger than the sum of its proper divisors (13444998972).

16863218716 is a wasteful number, since it uses less digits than its factorization.

16863218716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113940708 (or 113940706 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The spelling of 16863218716 in words is "sixteen billion, eight hundred sixty-three million, two hundred eighteen thousand, seven hundred sixteen".