16464546191 has 2 divisors, whose sum is σ = 16464546192. Its totient is φ = 16464546190.

The previous prime is 16464546169. The next prime is 16464546221. The reversal of 16464546191 is 19164546461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16464546191 - 2²⁶ = 16397437327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16464543191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8232273095 + 8232273096.

It is an arithmetic number, because the mean of its divisors is an integer number (8232273096).

Almost surely, 2^16464546191 is an apocalyptic number.

16464546191 is a deficient number, since it is larger than the sum of its proper divisors (1).

16464546191 is an equidigital number, since it uses as much as digits as its factorization.

16464546191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The spelling of 16464546191 in words is "sixteen billion, four hundred sixty-four million, five hundred forty-six thousand, one hundred ninety-one".