20303215504 has 40 divisors (see below), whose sum is σ = 46214667072. Its totient is φ = 8518830720.

The previous prime is 20303215469. The next prime is 20303215571. The reversal of 20303215504 is 40551230302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4434604 + ... + 4439179.

Almost surely, 2^20303215504 is an apocalyptic number.

It is an amenable number.

20303215504 is an abundant number, since it is smaller than the sum of its proper divisors (25911451568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20303215504 is a wasteful number, since it uses less digits than its factorization.

20303215504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8873815 (or 8873809 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20303215504 its reverse (40551230302), we get a palindrome (60854445806).

The spelling of 20303215504 in words is "twenty billion, three hundred three million, two hundred fifteen thousand, five hundred four".