16884145433 has 4 divisors (see below), whose sum is σ = 16886240820. Its totient is φ = 16882050048.

The previous prime is 16884145403. The next prime is 16884145441. The reversal of 16884145433 is 33454148861.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8155354249 + 8728791184 = 90307^2 + 93428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16884145433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16884145403) 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, 1035560 + ... + 1051737.

It is an arithmetic number, because the mean of its divisors is an integer number (4221560205).

Almost surely, 2^16884145433 is an apocalyptic number.

It is an amenable number.

16884145433 is a deficient number, since it is larger than the sum of its proper divisors (2095387).

16884145433 is an equidigital number, since it uses as much as digits as its factorization.

16884145433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095386.

The product of its digits is 1105920, while the sum is 47.

The spelling of 16884145433 in words is "sixteen billion, eight hundred eighty-four million, one hundred forty-five thousand, four hundred thirty-three".