16532171234 has 4 divisors (see below), whose sum is σ = 24798256854. Its totient is φ = 8266085616.

The previous prime is 16532171221. The next prime is 16532171291. The reversal of 16532171234 is 43217123561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43217123561 = 233 ⋅185481217.

It can be written as a sum of positive squares in only one way, i.e., 15733939225 + 798232009 = 125435^2 + 28253^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16532171194 and 16532171203.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4133042807 + ... + 4133042810.

Almost surely, 2^16532171234 is an apocalyptic number.

16532171234 is a deficient number, since it is larger than the sum of its proper divisors (8266085620).

16532171234 is an equidigital number, since it uses as much as digits as its factorization.

16532171234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8266085619.

The product of its digits is 30240, while the sum is 35.

Adding to 16532171234 its reverse (43217123561), we get a palindrome (59749294795).

The spelling of 16532171234 in words is "sixteen billion, five hundred thirty-two million, one hundred seventy-one thousand, two hundred thirty-four".