320206344466663 has 8 divisors (see below), whose sum is σ = 321347872504016. Its totient is φ = 319064887252800.

The previous prime is 320206344466651. The next prime is 320206344466703. The reversal of 320206344466663 is 366664443602023.

It is a happy number.

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 320206344466663 - 2³⁷ = 320068905513191 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 (320206344466643) 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, 8639118 + ... + 26740363.

It is an arithmetic number, because the mean of its divisors is an integer number (40168484063002).

Almost surely, 2^{320206344466663} is an apocalyptic number.

320206344466663 is a deficient number, since it is larger than the sum of its proper divisors (1141528037353).

320206344466663 is a wasteful number, since it uses less digits than its factorization.

320206344466663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35411745.

The product of its (nonzero) digits is 53747712, while the sum is 55.

The spelling of 320206344466663 in words is "three hundred twenty trillion, two hundred six billion, three hundred forty-four million, four hundred sixty-six thousand, six hundred sixty-three".