16368394668 has 12 divisors (see below), whose sum is σ = 38192920920. Its totient is φ = 5456131552.

The previous prime is 16368394667. The next prime is 16368394697. The reversal of 16368394668 is 86649386361.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (16368394667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682016433 + ... + 682016456.

It is an arithmetic number, because the mean of its divisors is an integer number (3182743410).

Almost surely, 2^16368394668 is an apocalyptic number.

It is an amenable number.

16368394668 is an abundant number, since it is smaller than the sum of its proper divisors (21824526252).

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

16368394668 is a wasteful number, since it uses less digits than its factorization.

16368394668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364032896 (or 1364032894 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 60.

The spelling of 16368394668 in words is "sixteen billion, three hundred sixty-eight million, three hundred ninety-four thousand, six hundred sixty-eight".