320223450145 has 8 divisors (see below), whose sum is σ = 385282042560. Its totient is φ = 255502825200.

The previous prime is 320223450133. The next prime is 320223450167. The reversal of 320223450145 is 541054322023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320223450145 - 2⁷ = 320223450017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84489781 + ... + 84493570.

It is an arithmetic number, because the mean of its divisors is an integer number (48160255320).

Almost surely, 2^320223450145 is an apocalyptic number.

It is an amenable number.

320223450145 is a deficient number, since it is larger than the sum of its proper divisors (65058592415).

320223450145 is a wasteful number, since it uses less digits than its factorization.

320223450145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168983735.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 320223450145 its reverse (541054322023), we get a palindrome (861277772168).

The spelling of 320223450145 in words is "three hundred twenty billion, two hundred twenty-three million, four hundred fifty thousand, one hundred forty-five".