320016545911 has 4 divisors (see below), whose sum is σ = 320048528800. Its totient is φ = 319984563024.

The previous prime is 320016545869. The next prime is 320016545939. The reversal of 320016545911 is 119545610023.

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 320016545911 - 2²¹ = 320014448759 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 (320016549911) 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, 15976431 + ... + 15996448.

It is an arithmetic number, because the mean of its divisors is an integer number (80012132200).

Almost surely, 2^320016545911 is an apocalyptic number.

320016545911 is a deficient number, since it is larger than the sum of its proper divisors (31982889).

320016545911 is a wasteful number, since it uses less digits than its factorization.

320016545911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31982888.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 320016545911 in words is "three hundred twenty billion, sixteen million, five hundred forty-five thousand, nine hundred eleven".