20320306364 has 6 divisors (see below), whose sum is σ = 35560536144. Its totient is φ = 10160153180.

The previous prime is 20320306339. The next prime is 20320306367. The reversal of 20320306364 is 46360302302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320306367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2540038292 + ... + 2540038299.

It is an arithmetic number, because the mean of its divisors is an integer number (5926756024).

Almost surely, 2^20320306364 is an apocalyptic number.

It is an amenable number.

20320306364 is a deficient number, since it is larger than the sum of its proper divisors (15240229780).

20320306364 is a wasteful number, since it uses less digits than its factorization.

20320306364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080076595 (or 5080076593 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 20320306364 its reverse (46360302302), we get a palindrome (66680608666).

The spelling of 20320306364 in words is "twenty billion, three hundred twenty million, three hundred six thousand, three hundred sixty-four".