20382083644 has 12 divisors (see below), whose sum is σ = 38412388504. Its totient is φ = 9407115504.

The previous prime is 20382083611. The next prime is 20382083647. The reversal of 20382083644 is 44638028302.

It is a junction number, because it is equal to n+sod(n) for n = 20382083597 and 20382083606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20382083647) 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, 195981522 + ... + 195981625.

Almost surely, 2^20382083644 is an apocalyptic number.

It is an amenable number.

20382083644 is a deficient number, since it is larger than the sum of its proper divisors (18030304860).

20382083644 is a wasteful number, since it uses less digits than its factorization.

20382083644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391963164 (or 391963162 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 20382083644 in words is "twenty billion, three hundred eighty-two million, eighty-three thousand, six hundred forty-four".