4352221454320 has 80 divisors (see below), whose sum is σ = 10184563512288. Its totient is φ = 1729596810240.

The previous prime is 4352221454303. The next prime is 4352221454327. The reversal of 4352221454320 is 234541222534.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 4352221454320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4352221454327) 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, 152049610 + ... + 152078230.

Almost surely, 2^{4352221454320} is an apocalyptic number.

4352221454320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4352221454320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5092281756144).

4352221454320 is an abundant number, since it is smaller than the sum of its proper divisors (5832342057968).

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

4352221454320 is a wasteful number, since it uses less digits than its factorization.

4352221454320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40898 (or 40892 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 4352221454320 its reverse (234541222534), we get a palindrome (4586762676854).

The spelling of 4352221454320 in words is "four trillion, three hundred fifty-two billion, two hundred twenty-one million, four hundred fifty-four thousand, three hundred twenty".