20680360032 has 24 divisors (see below), whose sum is σ = 54285945336. Its totient is φ = 6893453312.

The previous prime is 20680360031. The next prime is 20680360037. The reversal of 20680360032 is 23006308602.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20680360031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107710113 + ... + 107710304.

It is an arithmetic number, because the mean of its divisors is an integer number (2261914389).

Almost surely, 2^20680360032 is an apocalyptic number.

It is an amenable number.

20680360032 is an abundant number, since it is smaller than the sum of its proper divisors (33605585304).

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

20680360032 is a wasteful number, since it uses less digits than its factorization.

20680360032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215420430 (or 215420422 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 20680360032 its reverse (23006308602), we get a palindrome (43686668634).

The spelling of 20680360032 in words is "twenty billion, six hundred eighty million, three hundred sixty thousand, thirty-two".