20369583568 has 20 divisors (see below), whose sum is σ = 39468554208. Its totient is φ = 10184150240.

The previous prime is 20369583529. The next prime is 20369583569. The reversal of 20369583568 is 86538596302.

It is a super-2 number, since 2×20369583568² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20369583569) 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 in 3 ways as a sum of consecutive naturals, for example, 319653 + ... + 378043.

Almost surely, 2^20369583568 is an apocalyptic number.

It is an amenable number.

20369583568 is a deficient number, since it is larger than the sum of its proper divisors (19098970640).

20369583568 is a wasteful number, since it uses less digits than its factorization.

20369583568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80202 (or 80196 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 20369583568 in words is "twenty billion, three hundred sixty-nine million, five hundred eighty-three thousand, five hundred sixty-eight".