16684073451 has 12 divisors (see below), whose sum is σ = 25367597320. Its totient is φ = 10537309440.

The previous prime is 16684073387. The next prime is 16684073459. The reversal of 16684073451 is 15437048661.

16684073451 is a `hidden beast` number, since 166 + 8 + 407 + 34 + 51 = 666.

It is not a de Polignac number, because 16684073451 - 2⁶ = 16684073387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16684073397 and 16684073406.

It is not an unprimeable number, because it can be changed into a prime (16684073459) 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 11 ways as a sum of consecutive naturals, for example, 48783670 + ... + 48784011.

Almost surely, 2^16684073451 is an apocalyptic number.

16684073451 is a deficient number, since it is larger than the sum of its proper divisors (8683523869).

16684073451 is a wasteful number, since it uses less digits than its factorization.

16684073451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97567706 (or 97567703 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 16684073451 in words is "sixteen billion, six hundred eighty-four million, seventy-three thousand, four hundred fifty-one".