16280280291 has 12 divisors (see below), whose sum is σ = 23859805256. Its totient is φ = 9866836320.

The previous prime is 16280280281. The next prime is 16280280307. The reversal of 16280280291 is 19208208261.

It is not a de Polignac number, because 16280280291 - 2¹⁷ = 16280149219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16280280271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22424266 + ... + 22424991.

Almost surely, 2^16280280291 is an apocalyptic number.

16280280291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16280280291 is a deficient number, since it is larger than the sum of its proper divisors (7579524965).

16280280291 is a wasteful number, since it uses less digits than its factorization.

16280280291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44849282 (or 44849271 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The spelling of 16280280291 in words is "sixteen billion, two hundred eighty million, two hundred eighty thousand, two hundred ninety-one".