320466856601 has 4 divisors (see below), whose sum is σ = 320673211572. Its totient is φ = 320260501632.

The previous prime is 320466856471. The next prime is 320466856621. The reversal of 320466856601 is 106658664023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106658664023 = 40531 ⋅2631533.

It can be written as a sum of positive squares in 2 ways, for example, as 192699928576 + 127766928025 = 438976^2 + 357445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320466856601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320466856621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103175156 + ... + 103178261.

It is an arithmetic number, because the mean of its divisors is an integer number (80168302893).

Almost surely, 2^320466856601 is an apocalyptic number.

It is an amenable number.

320466856601 is a deficient number, since it is larger than the sum of its proper divisors (206354971).

320466856601 is a wasteful number, since it uses less digits than its factorization.

320466856601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206354970.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 320466856601 in words is "three hundred twenty billion, four hundred sixty-six million, eight hundred fifty-six thousand, six hundred one".