20363343560 has 48 divisors (see below), whose sum is σ = 53297940060. Its totient is φ = 6981717120.

The previous prime is 20363343551. The next prime is 20363343571. The reversal of 20363343560 is 6534336302.

It can be written as a sum of positive squares in 2 ways, for example, as 20156616676 + 206726884 = 141974^2 + 14378^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 20363343560.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5192771 + ... + 5196690.

Almost surely, 2^20363343560 is an apocalyptic number.

20363343560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20363343560 is an abundant number, since it is smaller than the sum of its proper divisors (32934596500).

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

20363343560 is a wasteful number, since it uses less digits than its factorization.

20363343560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10389486 (or 10389475 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 35.

Adding to 20363343560 its reverse (6534336302), we get a palindrome (26897679862).

The spelling of 20363343560 in words is "twenty billion, three hundred sixty-three million, three hundred forty-three thousand, five hundred sixty".