4352221454544 has 240 divisors, whose sum is σ = 12347909683200. Its totient is φ = 1430924673024.

The previous prime is 4352221454531. The next prime is 4352221454569. The reversal of 4352221454544 is 4454541222534.

4352221454544 is a `hidden beast` number, since 4 + 3 + 52 + 2 + 2 + 1 + 4 + 54 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 4352221454544.

It is a congruent number.

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, 2704922412 + ... + 2704924020.

It is an arithmetic number, because the mean of its divisors is an integer number (51449623680).

Almost surely, 2^{4352221454544} 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 4352221454544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6173954841600).

4352221454544 is an abundant number, since it is smaller than the sum of its proper divisors (7995688228656).

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

4352221454544 is a wasteful number, since it uses less digits than its factorization.

4352221454544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522 (or 2513 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 45.

The spelling of 4352221454544 in words is "four trillion, three hundred fifty-two billion, two hundred twenty-one million, four hundred fifty-four thousand, five hundred forty-four".