16669071851 has 2 divisors, whose sum is σ = 16669071852. Its totient is φ = 16669071850.

The previous prime is 16669071833. The next prime is 16669071869. The reversal of 16669071851 is 15817096661.

It is a balanced prime because it is at equal distance from previous prime (16669071833) and next prime (16669071869).

It is a cyclic number.

It is not a de Polignac number, because 16669071851 - 2⁶ = 16669071787 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16669071851.

It is not a weakly prime, because it can be changed into another prime (16669071821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8334535925 + 8334535926.

It is an arithmetic number, because the mean of its divisors is an integer number (8334535926).

Almost surely, 2^16669071851 is an apocalyptic number.

16669071851 is a deficient number, since it is larger than the sum of its proper divisors (1).

16669071851 is an equidigital number, since it uses as much as digits as its factorization.

16669071851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 16669071851 in words is "sixteen billion, six hundred sixty-nine million, seventy-one thousand, eight hundred fifty-one".