320120363664611 has 4 divisors (see below), whose sum is σ = 320138023547232. Its totient is φ = 320102703781992.

The previous prime is 320120363664599. The next prime is 320120363664631. The reversal of 320120363664611 is 116466363021023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320120363664611 - 2¹⁸ = 320120363402467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320120363664631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8829914120 + ... + 8829950373.

It is an arithmetic number, because the mean of its divisors is an integer number (80034505886808).

Almost surely, 2^{320120363664611} is an apocalyptic number.

320120363664611 is a deficient number, since it is larger than the sum of its proper divisors (17659882621).

320120363664611 is a wasteful number, since it uses less digits than its factorization.

320120363664611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17659882620.

The product of its (nonzero) digits is 559872, while the sum is 44.

The spelling of 320120363664611 in words is "three hundred twenty trillion, one hundred twenty billion, three hundred sixty-three million, six hundred sixty-four thousand, six hundred eleven".