320222145455 has 16 divisors (see below), whose sum is σ = 385299318240. Its totient is φ = 255490109952.

The previous prime is 320222145403. The next prime is 320222145461. The reversal of 320222145455 is 554541222023.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320222145455 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2866691 + ... + 2976299.

It is an arithmetic number, because the mean of its divisors is an integer number (24081207390).

Almost surely, 2^320222145455 is an apocalyptic number.

320222145455 is a deficient number, since it is larger than the sum of its proper divisors (65077172785).

320222145455 is a wasteful number, since it uses less digits than its factorization.

320222145455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111178.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 320222145455 its reverse (554541222023), we get a palindrome (874763367478).

The spelling of 320222145455 in words is "three hundred twenty billion, two hundred twenty-two million, one hundred forty-five thousand, four hundred fifty-five".