16551305234 has 8 divisors (see below), whose sum is σ = 25295391180. Its totient is φ = 8119508176.

The previous prime is 16551305207. The next prime is 16551305237. The reversal of 16551305234 is 43250315561.

It can be written as a sum of positive squares in 2 ways, for example, as 16346901025 + 204404209 = 127855^2 + 14297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16551305194 and 16551305203.

It is not an unprimeable number, because it can be changed into a prime (16551305237) 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, 78072089 + ... + 78072300.

Almost surely, 2^16551305234 is an apocalyptic number.

16551305234 is a deficient number, since it is larger than the sum of its proper divisors (8744085946).

16551305234 is a wasteful number, since it uses less digits than its factorization.

16551305234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156144444.

The product of its (nonzero) digits is 54000, while the sum is 35.

The spelling of 16551305234 in words is "sixteen billion, five hundred fifty-one million, three hundred five thousand, two hundred thirty-four".