16674506671 has 2 divisors, whose sum is σ = 16674506672. Its totient is φ = 16674506670.

The previous prime is 16674506621. The next prime is 16674506687. The reversal of 16674506671 is 17660547661.

It is a strong prime.

It is an emirp because it is prime and its reverse (17660547661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16674506671 - 2¹⁵ = 16674473903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16674506621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8337253335 + 8337253336.

It is an arithmetic number, because the mean of its divisors is an integer number (8337253336).

Almost surely, 2^16674506671 is an apocalyptic number.

16674506671 is a deficient number, since it is larger than the sum of its proper divisors (1).

16674506671 is an equidigital number, since it uses as much as digits as its factorization.

16674506671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 16674506671 in words is "sixteen billion, six hundred seventy-four million, five hundred six thousand, six hundred seventy-one".