22183720540 has 24 divisors (see below), whose sum is σ = 46590172272. Its totient is φ = 8872657920.

The previous prime is 22183720523. The next prime is 22183720567. The reversal of 22183720540 is 4502738122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22183720496 and 22183720505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196095 + ... + 287785.

It is an arithmetic number, because the mean of its divisors is an integer number (1941257178).

Almost surely, 2^22183720540 is an apocalyptic number.

22183720540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22183720540 is an abundant number, since it is smaller than the sum of its proper divisors (24406451732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22183720540 is a wasteful number, since it uses less digits than its factorization.

22183720540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103797 (or 103795 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 22183720540 in words is "twenty-two billion, one hundred eighty-three million, seven hundred twenty thousand, five hundred forty".