16684653507011 has 16 divisors (see below), whose sum is σ = 19552279758528. Its totient is φ = 13942202803200.

The previous prime is 16684653506987. The next prime is 16684653507017. The reversal of 16684653507011 is 11070535648661.

It is not a de Polignac number, because 16684653507011 - 2¹⁸ = 16684653244867 is a prime.

It is a super-2 number, since 2×16684653507011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16684653507017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172846130 + ... + 172942631.

It is an arithmetic number, because the mean of its divisors is an integer number (1222017484908).

Almost surely, 2^{16684653507011} is an apocalyptic number.

16684653507011 is a deficient number, since it is larger than the sum of its proper divisors (2867626251517).

16684653507011 is a wasteful number, since it uses less digits than its factorization.

16684653507011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345788942.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 16684653507011 in words is "sixteen trillion, six hundred eighty-four billion, six hundred fifty-three million, five hundred seven thousand, eleven".