20302205344 has 12 divisors (see below), whose sum is σ = 39969966834. Its totient is φ = 10151102656.

The previous prime is 20302205293. The next prime is 20302205353. The reversal of 20302205344 is 44350220302.

It can be written as a sum of positive squares in only one way, i.e., 19997353744 + 304851600 = 141412^2 + 17460^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317221927 + ... + 317221990.

Almost surely, 2^20302205344 is an apocalyptic number.

It is an amenable number.

20302205344 is a deficient number, since it is larger than the sum of its proper divisors (19667761490).

20302205344 is an equidigital number, since it uses as much as digits as its factorization.

20302205344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634443927 (or 634443919 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20302205344 its reverse (44350220302), we get a palindrome (64652425646).

The spelling of 20302205344 in words is "twenty billion, three hundred two million, two hundred five thousand, three hundred forty-four".