22250243461504 has 128 divisors (see below), whose sum is σ = 46444980394080. Its totient is φ = 10606161346560.

The previous prime is 22250243461493. The next prime is 22250243461519. The reversal of 22250243461504 is 40516434205222.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190958847 + ... + 191075329.

Almost surely, 2^{22250243461504} 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 22250243461504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23222490197040).

22250243461504 is an abundant number, since it is smaller than the sum of its proper divisors (24194736932576).

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

22250243461504 is a wasteful number, since it uses less digits than its factorization.

22250243461504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117348 (or 117336 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 22250243461504 its reverse (40516434205222), we get a palindrome (62766677666726).

The spelling of 22250243461504 in words is "twenty-two trillion, two hundred fifty billion, two hundred forty-three million, four hundred sixty-one thousand, five hundred four".