16545198227 has 2 divisors, whose sum is σ = 16545198228. Its totient is φ = 16545198226.

The previous prime is 16545198221. The next prime is 16545198239. The reversal of 16545198227 is 72289154561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16545198227 - 2⁴ = 16545198211 is a prime.

It is not a weakly prime, because it can be changed into another prime (16545198221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272599113 + 8272599114.

It is an arithmetic number, because the mean of its divisors is an integer number (8272599114).

Almost surely, 2^16545198227 is an apocalyptic number.

16545198227 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545198227 is an equidigital number, since it uses as much as digits as its factorization.

16545198227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 50.

The spelling of 16545198227 in words is "sixteen billion, five hundred forty-five million, one hundred ninety-eight thousand, two hundred twenty-seven".