16452051491 has 2 divisors, whose sum is σ = 16452051492. Its totient is φ = 16452051490.

The previous prime is 16452051487. The next prime is 16452051533. The reversal of 16452051491 is 19415025461.

16452051491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16452051491 - 2² = 16452051487 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16452051431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8226025745 + 8226025746.

It is an arithmetic number, because the mean of its divisors is an integer number (8226025746).

Almost surely, 2^16452051491 is an apocalyptic number.

16452051491 is a deficient number, since it is larger than the sum of its proper divisors (1).

16452051491 is an equidigital number, since it uses as much as digits as its factorization.

16452051491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 16452051491 in words is "sixteen billion, four hundred fifty-two million, fifty-one thousand, four hundred ninety-one".