16422249691 has 2 divisors, whose sum is σ = 16422249692. Its totient is φ = 16422249690.

The previous prime is 16422249673. The next prime is 16422249703. The reversal of 16422249691 is 19694222461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16422249691 - 2²⁹ = 15885378779 is a prime.

It is not a weakly prime, because it can be changed into another prime (16422249091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8211124845 + 8211124846.

It is an arithmetic number, because the mean of its divisors is an integer number (8211124846).

Almost surely, 2^16422249691 is an apocalyptic number.

16422249691 is a deficient number, since it is larger than the sum of its proper divisors (1).

16422249691 is an equidigital number, since it uses as much as digits as its factorization.

16422249691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 46.

The spelling of 16422249691 in words is "sixteen billion, four hundred twenty-two million, two hundred forty-nine thousand, six hundred ninety-one".