20316441609 has 6 divisors (see below), whose sum is σ = 29345971226. Its totient is φ = 13544294400.

The previous prime is 20316441589. The next prime is 20316441653. The reversal of 20316441609 is 90614461302.

20316441609 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 6 + 4 + 41 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18919177209 + 1397264400 = 137547^2 + 37380^2 .

It is not a de Polignac number, because 20316441609 - 2⁵ = 20316441577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20316041609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1128691192 + ... + 1128691209.

Almost surely, 2^20316441609 is an apocalyptic number.

It is an amenable number.

20316441609 is a deficient number, since it is larger than the sum of its proper divisors (9029529617).

20316441609 is a wasteful number, since it uses less digits than its factorization.

20316441609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257382407 (or 2257382404 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 20316441609 in words is "twenty billion, three hundred sixteen million, four hundred forty-one thousand, six hundred nine".