22530065661444 has 144 divisors (see below), whose sum is σ = 58451268536640. Its totient is φ = 6748641504000.

The previous prime is 22530065661421. The next prime is 22530065661457. The reversal of 22530065661444 is 44416656003522.

It is a junction number, because it is equal to n+sod(n) for n = 22530065661393 and 22530065661402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89772367 + ... + 90022985.

It is an arithmetic number, because the mean of its divisors is an integer number (405911587060).

Almost surely, 2^{22530065661444} 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 22530065661444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29225634268320).

22530065661444 is an abundant number, since it is smaller than the sum of its proper divisors (35921202875196).

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

22530065661444 is a wasteful number, since it uses less digits than its factorization.

22530065661444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251362 (or 251349 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 22530065661444 in words is "twenty-two trillion, five hundred thirty billion, sixty-five million, six hundred sixty-one thousand, four hundred forty-four".