20005106716432 has 40 divisors (see below), whose sum is σ = 39002266728152. Its totient is φ = 9940085683200.

The previous prime is 20005106716393. The next prime is 20005106716433. The reversal of 20005106716432 is 23461760150002.

It can be written as a sum of positive squares in 4 ways, for example, as 752528490256 + 19252578226176 = 867484^2 + 4387776^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20005106716391 and 20005106716400.

It is not an unprimeable number, because it can be changed into a prime (20005106716433) 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, 1498348 + ... + 6500404.

Almost surely, 2^{20005106716432} is an apocalyptic number.

It is an amenable number.

20005106716432 is a deficient number, since it is larger than the sum of its proper divisors (18997160011720).

20005106716432 is a wasteful number, since it uses less digits than its factorization.

20005106716432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5003627 (or 5003621 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

Adding to 20005106716432 its reverse (23461760150002), we get a palindrome (43466866866434).

The spelling of 20005106716432 in words is "twenty trillion, five billion, one hundred six million, seven hundred sixteen thousand, four hundred thirty-two".