16813335323 has 4 divisors (see below), whose sum is σ = 16813765440. Its totient is φ = 16812905208.

The previous prime is 16813335313. The next prime is 16813335361. The reversal of 16813335323 is 32353331861.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16813335323 - 2⁸ = 16813335067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16813335313) 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, 149828 + ... + 236801.

It is an arithmetic number, because the mean of its divisors is an integer number (4203441360).

Almost surely, 2^16813335323 is an apocalyptic number.

16813335323 is a deficient number, since it is larger than the sum of its proper divisors (430117).

16813335323 is an equidigital number, since it uses as much as digits as its factorization.

16813335323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430116.

The product of its digits is 116640, while the sum is 38.

The spelling of 16813335323 in words is "sixteen billion, eight hundred thirteen million, three hundred thirty-five thousand, three hundred twenty-three".