16778350012 has 12 divisors (see below), whose sum is σ = 29409705360. Its totient is φ = 8375577056.

The previous prime is 16778349989. The next prime is 16778350049. The reversal of 16778350012 is 21005387761.

16778350012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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, 3396712 + ... + 3401647.

It is an arithmetic number, because the mean of its divisors is an integer number (2450808780).

Almost surely, 2^16778350012 is an apocalyptic number.

It is an amenable number.

16778350012 is a deficient number, since it is larger than the sum of its proper divisors (12631355348).

16778350012 is a wasteful number, since it uses less digits than its factorization.

16778350012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798980 (or 6798978 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 16778350012 in words is "sixteen billion, seven hundred seventy-eight million, three hundred fifty thousand, twelve".