22490550992 has 80 divisors (see below), whose sum is σ = 54152367360. Its totient is φ = 8810919936.

The previous prime is 22490550991. The next prime is 22490550997. The reversal of 22490550992 is 29905509422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22490550991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74984 + ... + 224952.

It is an arithmetic number, because the mean of its divisors is an integer number (676904592).

Almost surely, 2^22490550992 is an apocalyptic number.

It is a pronic number, being equal to 149968×149969.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22490550992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27076183680).

22490550992 is an abundant number, since it is smaller than the sum of its proper divisors (31661816368).

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

22490550992 is a wasteful number, since it uses less digits than its factorization.

22490550992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150100 (or 150094 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 47.

The spelling of 22490550992 in words is "twenty-two billion, four hundred ninety million, five hundred fifty thousand, nine hundred ninety-two".