20079767232 has 504 divisors, whose sum is σ = 69315451920. Its totient is φ = 5539000320.

The previous prime is 20079767221. The next prime is 20079767317. The reversal of 20079767232 is 23276797002.

It is a tau number, because it is divible by the number of its divisors (504).

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 71 ways as a sum of consecutive naturals, for example, 184217994 + ... + 184218102.

Almost surely, 2^20079767232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20079767232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34657725960).

20079767232 is an abundant number, since it is smaller than the sum of its proper divisors (49235684688).

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

20079767232 is a wasteful number, since it uses less digits than its factorization.

20079767232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The spelling of 20079767232 in words is "twenty billion, seventy-nine million, seven hundred sixty-seven thousand, two hundred thirty-two".