1601742887453 has 2 divisors, whose sum is σ = 1601742887454. Its totient is φ = 1601742887452.

The previous prime is 1601742887401. The next prime is 1601742887471. The reversal of 1601742887453 is 3547882471061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 878227631044 + 723515256409 = 937138^2 + 850597^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601742887453 - 2⁸ = 1601742887197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601742887473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800871443726 + 800871443727.

It is an arithmetic number, because the mean of its divisors is an integer number (800871443727).

Almost surely, 2^{1601742887453} is an apocalyptic number.

It is an amenable number.

1601742887453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601742887453 is an equidigital number, since it uses as much as digits as its factorization.

1601742887453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 1601742887453 in words is "one trillion, six hundred one billion, seven hundred forty-two million, eight hundred eighty-seven thousand, four hundred fifty-three".