22250243461544 has 192 divisors, whose sum is σ = 51336361440000. Its totient is φ = 8999817361920.

The previous prime is 22250243461519. The next prime is 22250243461603. The reversal of 22250243461544 is 44516434205222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22250243461495 and 22250243461504.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 433288382 + ... + 433339730.

It is an arithmetic number, because the mean of its divisors is an integer number (267376882500).

Almost surely, 2^{22250243461544} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22250243461544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25668180720000).

22250243461544 is an abundant number, since it is smaller than the sum of its proper divisors (29086117978456).

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

22250243461544 is a wasteful number, since it uses less digits than its factorization.

22250243461544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52256 (or 52245 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 44.

Adding to 22250243461544 its reverse (44516434205222), we get a palindrome (66766677666766).

The spelling of 22250243461544 in words is "twenty-two trillion, two hundred fifty billion, two hundred forty-three million, four hundred sixty-one thousand, five hundred forty-four".