16532171233 has 4 divisors (see below), whose sum is σ = 16549198128. Its totient is φ = 16515144340.

The previous prime is 16532171221. The next prime is 16532171291. The reversal of 16532171233 is 33217123561.

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 16532171233 - 2¹³ = 16532163041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16532571233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8511991 + ... + 8513932.

It is an arithmetic number, because the mean of its divisors is an integer number (4137299532).

Almost surely, 2^16532171233 is an apocalyptic number.

It is an amenable number.

16532171233 is a deficient number, since it is larger than the sum of its proper divisors (17026895).

16532171233 is an equidigital number, since it uses as much as digits as its factorization.

16532171233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17026894.

The product of its digits is 22680, while the sum is 34.

Adding to 16532171233 its reverse (33217123561), we get a palindrome (49749294794).

The spelling of 16532171233 in words is "sixteen billion, five hundred thirty-two million, one hundred seventy-one thousand, two hundred thirty-three".