16897349533 has 4 divisors (see below), whose sum is σ = 17632016928. Its totient is φ = 16162682140.

The previous prime is 16897349489. The next prime is 16897349543. The reversal of 16897349533 is 33594379861.

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.

It is a cyclic number.

It is not a de Polignac number, because 16897349533 - 2¹³ = 16897341341 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 (16897349543) 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, 367333663 + ... + 367333708.

It is an arithmetic number, because the mean of its divisors is an integer number (4408004232).

Almost surely, 2^16897349533 is an apocalyptic number.

It is an amenable number.

16897349533 is a deficient number, since it is larger than the sum of its proper divisors (734667395).

16897349533 is an equidigital number, since it uses as much as digits as its factorization.

16897349533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734667394.

The product of its digits is 14696640, while the sum is 58.

The spelling of 16897349533 in words is "sixteen billion, eight hundred ninety-seven million, three hundred forty-nine thousand, five hundred thirty-three".