320760282545221 has 16 divisors (see below), whose sum is σ = 339953917752000. Its totient is φ = 301798344355200.

The previous prime is 320760282545207. The next prime is 320760282545233. The reversal of 320760282545221 is 122545282067023.

It is a cyclic number.

It is not a de Polignac number, because 320760282545221 - 2¹³ = 320760282537029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320760282545621) 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, 13606006 + ... + 28751416.

It is an arithmetic number, because the mean of its divisors is an integer number (21247119859500).

Almost surely, 2^{320760282545221} is an apocalyptic number.

It is an amenable number.

320760282545221 is a deficient number, since it is larger than the sum of its proper divisors (19193635206779).

320760282545221 is a wasteful number, since it uses less digits than its factorization.

320760282545221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15153060.

The product of its (nonzero) digits is 3225600, while the sum is 49.

The spelling of 320760282545221 in words is "three hundred twenty trillion, seven hundred sixty billion, two hundred eighty-two million, five hundred forty-five thousand, two hundred twenty-one".