16345959433 has 4 divisors (see below), whose sum is σ = 16390499200. Its totient is φ = 16301419668.

The previous prime is 16345959397. The next prime is 16345959473. The reversal of 16345959433 is 33495954361.

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 16345959433 - 2¹³ = 16345951241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16345959473) 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, 22269333 + ... + 22270066.

It is an arithmetic number, because the mean of its divisors is an integer number (4097624800).

Almost surely, 2^16345959433 is an apocalyptic number.

It is an amenable number.

16345959433 is a deficient number, since it is larger than the sum of its proper divisors (44539767).

16345959433 is an equidigital number, since it uses as much as digits as its factorization.

16345959433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44539766.

The product of its digits is 5248800, while the sum is 52.

The spelling of 16345959433 in words is "sixteen billion, three hundred forty-five million, nine hundred fifty-nine thousand, four hundred thirty-three".