16343953453 has 4 divisors (see below), whose sum is σ = 16378951680. Its totient is φ = 16308955228.

The previous prime is 16343953403. The next prime is 16343953471. The reversal of 16343953453 is 35435934361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35435934361 = 613 ⋅57807397.

It is a cyclic number.

It is not a de Polignac number, because 16343953453 - 2¹⁷ = 16343822381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16343953403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17498413 + ... + 17499346.

It is an arithmetic number, because the mean of its divisors is an integer number (4094737920).

Almost surely, 2^16343953453 is an apocalyptic number.

It is an amenable number.

16343953453 is a deficient number, since it is larger than the sum of its proper divisors (34998227).

16343953453 is an equidigital number, since it uses as much as digits as its factorization.

16343953453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34998226.

The product of its digits is 1749600, while the sum is 46.

The spelling of 16343953453 in words is "sixteen billion, three hundred forty-three million, nine hundred fifty-three thousand, four hundred fifty-three".