16545126453551 has 2 divisors, whose sum is σ = 16545126453552. Its totient is φ = 16545126453550.

The previous prime is 16545126453509. The next prime is 16545126453629. The reversal of 16545126453551 is 15535462154561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16545126453551 - 2⁴² = 12147079942447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16545126453493 and 16545126453502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16545126453851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8272563226775 + 8272563226776.

It is an arithmetic number, because the mean of its divisors is an integer number (8272563226776).

Almost surely, 2^{16545126453551} is an apocalyptic number.

16545126453551 is a deficient number, since it is larger than the sum of its proper divisors (1).

16545126453551 is an equidigital number, since it uses as much as digits as its factorization.

16545126453551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800000, while the sum is 53.

The spelling of 16545126453551 in words is "sixteen trillion, five hundred forty-five billion, one hundred twenty-six million, four hundred fifty-three thousand, five hundred fifty-one".