320320162517 has 8 divisors (see below), whose sum is σ = 339283834776. Its totient is φ = 301369969152.

The previous prime is 320320162511. The next prime is 320320162543. The reversal of 320320162517 is 715261023023.

It can be written as a sum of positive squares in 4 ways, for example, as 163560389476 + 156759773041 = 404426^2 + 395929^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 320320162517 - 2⁶ = 320320162453 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 (320320162511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3320768 + ... + 3415865.

It is an arithmetic number, because the mean of its divisors is an integer number (42410479347).

Almost surely, 2^320320162517 is an apocalyptic number.

It is an amenable number.

320320162517 is a deficient number, since it is larger than the sum of its proper divisors (18963672259).

320320162517 is a wasteful number, since it uses less digits than its factorization.

320320162517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6739447.

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 320320162517 in words is "three hundred twenty billion, three hundred twenty million, one hundred sixty-two thousand, five hundred seventeen".