20183822644 has 12 divisors (see below), whose sum is σ = 35370820800. Its totient is φ = 10077873848.

The previous prime is 20183822621. The next prime is 20183822657. The reversal of 20183822644 is 44622838102.

It is a junction number, because it is equal to n+sod(n) for n = 20183822597 and 20183822606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3506134 + ... + 3511885.

It is an arithmetic number, because the mean of its divisors is an integer number (2947568400).

Almost surely, 2^20183822644 is an apocalyptic number.

It is an amenable number.

20183822644 is a deficient number, since it is larger than the sum of its proper divisors (15186998156).

20183822644 is a wasteful number, since it uses less digits than its factorization.

20183822644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7018742 (or 7018740 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 20183822644 in words is "twenty billion, one hundred eighty-three million, eight hundred twenty-two thousand, six hundred forty-four".