20320333732 has 12 divisors (see below), whose sum is σ = 35639786700. Its totient is φ = 10137537536.

The previous prime is 20320333717. The next prime is 20320333739. The reversal of 20320333732 is 23733302302.

It can be written as a sum of positive squares in 2 ways, for example, as 8959758336 + 11360575396 = 94656^2 + 106586^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20320333732.

It is not an unprimeable number, because it can be changed into a prime (20320333739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5655313 + ... + 5658904.

It is an arithmetic number, because the mean of its divisors is an integer number (2969982225).

Almost surely, 2^20320333732 is an apocalyptic number.

It is an amenable number.

20320333732 is a deficient number, since it is larger than the sum of its proper divisors (15319452968).

20320333732 is a wasteful number, since it uses less digits than its factorization.

20320333732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11314670 (or 11314668 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 28.

The spelling of 20320333732 in words is "twenty billion, three hundred twenty million, three hundred thirty-three thousand, seven hundred thirty-two".