20932446228688 has 40 divisors (see below), whose sum is σ = 41236262484840. Its totient is φ = 10290953187840.

The previous prime is 20932446228611. The next prime is 20932446228689. The reversal of 20932446228688 is 88682264423902.

It can be written as a sum of positive squares in 4 ways, for example, as 412379740224 + 20520066488464 = 642168^2 + 4529908^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20932446228689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1122895 + ... + 6567022.

It is an arithmetic number, because the mean of its divisors is an integer number (1030906562121).

Almost surely, 2^{20932446228688} is an apocalyptic number.

It is an amenable number.

20932446228688 is a deficient number, since it is larger than the sum of its proper divisors (20303816256152).

20932446228688 is a wasteful number, since it uses less digits than its factorization.

20932446228688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692775 (or 7692769 counting only the distinct ones).

The product of its (nonzero) digits is 127401984, while the sum is 64.

The spelling of 20932446228688 in words is "twenty trillion, nine hundred thirty-two billion, four hundred forty-six million, two hundred twenty-eight thousand, six hundred eighty-eight".