16606050091 has 2 divisors, whose sum is σ = 16606050092. Its totient is φ = 16606050090.

The previous prime is 16606050089. The next prime is 16606050169. The reversal of 16606050091 is 19005060661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16606050091 - 2¹ = 16606050089 is a prime.

It is a super-2 number, since 2×16606050091² (a number of 21 digits) contains 22 as substring.

Together with 16606050089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16606050691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8303025045 + 8303025046.

It is an arithmetic number, because the mean of its divisors is an integer number (8303025046).

Almost surely, 2^16606050091 is an apocalyptic number.

16606050091 is a deficient number, since it is larger than the sum of its proper divisors (1).

16606050091 is an equidigital number, since it uses as much as digits as its factorization.

16606050091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 16606050091 in words is "sixteen billion, six hundred six million, fifty thousand, ninety-one".