16133243233 has 4 divisors (see below), whose sum is σ = 16137051588. Its totient is φ = 16129434880.

The previous prime is 16133243183. The next prime is 16133243263. The reversal of 16133243233 is 33234233161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33234233161 = 71 ⋅468087791.

It can be written as a sum of positive squares in 2 ways, for example, as 15934517824 + 198725409 = 126232^2 + 14097^2 .

It is a cyclic number.

It is not a de Polignac number, because 16133243233 - 2⁹ = 16133242721 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16133243195 and 16133243204.

It is not an unprimeable number, because it can be changed into a prime (16133243263) 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, 1897816 + ... + 1906297.

It is an arithmetic number, because the mean of its divisors is an integer number (4034262897).

Almost surely, 2^16133243233 is an apocalyptic number.

It is an amenable number.

16133243233 is a deficient number, since it is larger than the sum of its proper divisors (3808355).

16133243233 is an equidigital number, since it uses as much as digits as its factorization.

16133243233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3808354.

The product of its digits is 23328, while the sum is 31.

Adding to 16133243233 its reverse (33234233161), we get a palindrome (49367476394).

The spelling of 16133243233 in words is "sixteen billion, one hundred thirty-three million, two hundred forty-three thousand, two hundred thirty-three".