20322320015 has 8 divisors (see below), whose sum is σ = 24387697728. Its totient is φ = 16257246880.

The previous prime is 20322319993. The next prime is 20322320017. The reversal of 20322320015 is 51002322302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20322320015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322320017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113669 + ... + 231441.

It is an arithmetic number, because the mean of its divisors is an integer number (3048462216).

Almost surely, 2^20322320015 is an apocalyptic number.

20322320015 is a deficient number, since it is larger than the sum of its proper divisors (4065377713).

20322320015 is a wasteful number, since it uses less digits than its factorization.

20322320015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152289.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 20322320015 its reverse (51002322302), we get a palindrome (71324642317).

The spelling of 20322320015 in words is "twenty billion, three hundred twenty-two million, three hundred twenty thousand, fifteen".