16090495209 has 40 divisors (see below), whose sum is σ = 24872237280. Its totient is φ = 10359607104.

The previous prime is 16090495193. The next prime is 16090495313. The reversal of 16090495209 is 90259409061.

It is not a de Polignac number, because 16090495209 - 2⁴ = 16090495193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16090495009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 284034 + ... + 335940.

It is an arithmetic number, because the mean of its divisors is an integer number (621805932).

Almost surely, 2^16090495209 is an apocalyptic number.

It is an amenable number.

16090495209 is a deficient number, since it is larger than the sum of its proper divisors (8781742071).

16090495209 is an equidigital number, since it uses as much as digits as its factorization.

16090495209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52051 (or 52042 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The spelling of 16090495209 in words is "sixteen billion, ninety million, four hundred ninety-five thousand, two hundred nine".