16683509340 has 36 divisors (see below), whose sum is σ = 50606645544. Its totient is φ = 4448935776.

The previous prime is 16683509281. The next prime is 16683509347. The reversal of 16683509340 is 4390538661.

16683509340 is a `hidden beast` number, since 1 + 66 + 83 + 509 + 3 + 4 + 0 = 666.

16683509340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16683509347) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 46342902 + ... + 46343261.

It is an arithmetic number, because the mean of its divisors is an integer number (1405740154).

Almost surely, 2^16683509340 is an apocalyptic number.

16683509340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16683509340 is an abundant number, since it is smaller than the sum of its proper divisors (33923136204).

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

16683509340 is a wasteful number, since it uses less digits than its factorization.

16683509340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92686178 (or 92686173 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 16683509340 in words is "sixteen billion, six hundred eighty-three million, five hundred nine thousand, three hundred forty".