16684214427 has 6 divisors (see below), whose sum is σ = 24099420852. Its totient is φ = 11122809612.

The previous prime is 16684214401. The next prime is 16684214453. The reversal of 16684214427 is 72441248661.

16684214427 is a `hidden beast` number, since 1 + 6 + 6 + 8 + 4 + 214 + 427 = 666.

It is an interprime number because it is at equal distance from previous prime (16684214401) and next prime (16684214453).

It is not a de Polignac number, because 16684214427 - 2⁶ = 16684214363 is a prime.

It is a super-2 number, since 2×16684214427² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16684214497) 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 5 ways as a sum of consecutive naturals, for example, 926900793 + ... + 926900810.

It is an arithmetic number, because the mean of its divisors is an integer number (4016570142).

Almost surely, 2^16684214427 is an apocalyptic number.

16684214427 is a deficient number, since it is larger than the sum of its proper divisors (7415206425).

16684214427 is a wasteful number, since it uses less digits than its factorization.

16684214427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853801609 (or 1853801606 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The spelling of 16684214427 in words is "sixteen billion, six hundred eighty-four million, two hundred fourteen thousand, four hundred twenty-seven".