16513945275 has 12 divisors (see below), whose sum is σ = 27303056312. Its totient is φ = 8807437440.

The previous prime is 16513945267. The next prime is 16513945289. The reversal of 16513945275 is 57254931561.

It is not a de Polignac number, because 16513945275 - 2³ = 16513945267 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110092894 + ... + 110093043.

Almost surely, 2^16513945275 is an apocalyptic number.

16513945275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16513945275 is a deficient number, since it is larger than the sum of its proper divisors (10789111037).

16513945275 is a wasteful number, since it uses less digits than its factorization.

16513945275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220185950 (or 220185945 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 48.

The spelling of 16513945275 in words is "sixteen billion, five hundred thirteen million, nine hundred forty-five thousand, two hundred seventy-five".