16699546651 has 2 divisors, whose sum is σ = 16699546652. Its totient is φ = 16699546650.

The previous prime is 16699546627. The next prime is 16699546691. The reversal of 16699546651 is 15664599661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16699546651 - 2²¹ = 16697449499 is a prime.

It is not a weakly prime, because it can be changed into another prime (16699546691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8349773325 + 8349773326.

It is an arithmetic number, because the mean of its divisors is an integer number (8349773326).

Almost surely, 2^16699546651 is an apocalyptic number.

16699546651 is a deficient number, since it is larger than the sum of its proper divisors (1).

16699546651 is an equidigital number, since it uses as much as digits as its factorization.

16699546651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10497600, while the sum is 58.

The spelling of 16699546651 in words is "sixteen billion, six hundred ninety-nine million, five hundred forty-six thousand, six hundred fifty-one".