16903494968453 has 2 divisors, whose sum is σ = 16903494968454. Its totient is φ = 16903494968452.

The previous prime is 16903494968449. The next prime is 16903494968467. The reversal of 16903494968453 is 35486949430961.

16903494968453 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 can be written as a sum of positive squares in only one way, i.e., 14615466628324 + 2288028340129 = 3823018^2 + 1512623^2 .

It is a cyclic number.

It is not a de Polignac number, because 16903494968453 - 2² = 16903494968449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16903494968443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8451747484226 + 8451747484227.

It is an arithmetic number, because the mean of its divisors is an integer number (8451747484227).

Almost surely, 2^{16903494968453} is an apocalyptic number.

It is an amenable number.

16903494968453 is a deficient number, since it is larger than the sum of its proper divisors (1).

16903494968453 is an equidigital number, since it uses as much as digits as its factorization.

16903494968453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604661760, while the sum is 71.

The spelling of 16903494968453 in words is "sixteen trillion, nine hundred three billion, four hundred ninety-four million, nine hundred sixty-eight thousand, four hundred fifty-three".