20065244624 has 20 divisors (see below), whose sum is σ = 39277202244. Its totient is φ = 9929192448.

The previous prime is 20065244599. The next prime is 20065244627. The reversal of 20065244624 is 42644256002.

It can be written as a sum of positive squares in 2 ways, for example, as 2604265024 + 17460979600 = 51032^2 + 132140^2 .

It is a super-2 number, since 2×20065244624² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20065244627) 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, 6462767 + ... + 6465870.

Almost surely, 2^20065244624 is an apocalyptic number.

It is an amenable number.

20065244624 is a deficient number, since it is larger than the sum of its proper divisors (19211957620).

20065244624 is a wasteful number, since it uses less digits than its factorization.

20065244624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12928742 (or 12928736 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 35.

The spelling of 20065244624 in words is "twenty billion, sixty-five million, two hundred forty-four thousand, six hundred twenty-four".