20324500017 has 4 divisors (see below), whose sum is σ = 27099333360. Its totient is φ = 13549666676.

The previous prime is 20324499989. The next prime is 20324500019. The reversal of 20324500017 is 71000542302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20324500017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20324500017.

It is not an unprimeable number, because it can be changed into a prime (20324500019) 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, 3387416667 + ... + 3387416672.

It is an arithmetic number, because the mean of its divisors is an integer number (6774833340).

Almost surely, 2^20324500017 is an apocalyptic number.

It is an amenable number.

20324500017 is a deficient number, since it is larger than the sum of its proper divisors (6774833343).

20324500017 is an equidigital number, since it uses as much as digits as its factorization.

20324500017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6774833342.

The product of its (nonzero) digits is 1680, while the sum is 24.

The spelling of 20324500017 in words is "twenty billion, three hundred twenty-four million, five hundred thousand, seventeen".