16678454327 has 2 divisors, whose sum is σ = 16678454328. Its totient is φ = 16678454326.

The previous prime is 16678454293. The next prime is 16678454389. The reversal of 16678454327 is 72345487661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16678454327 - 2¹⁴ = 16678437943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16678454927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8339227163 + 8339227164.

It is an arithmetic number, because the mean of its divisors is an integer number (8339227164).

Almost surely, 2^16678454327 is an apocalyptic number.

16678454327 is a deficient number, since it is larger than the sum of its proper divisors (1).

16678454327 is an equidigital number, since it uses as much as digits as its factorization.

16678454327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 53.

The spelling of 16678454327 in words is "sixteen billion, six hundred seventy-eight million, four hundred fifty-four thousand, three hundred twenty-seven".