320705452854 has 72 divisors (see below), whose sum is σ = 721517175288. Its totient is φ = 102939517440.

The previous prime is 320705452801. The next prime is 320705452913. The reversal of 320705452854 is 458254507023.

320705452854 is a `hidden beast` number, since 3 + 2 + 0 + 70 + 5 + 4 + 528 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2323189 + ... + 2457359.

It is an arithmetic number, because the mean of its divisors is an integer number (10021071879).

Almost surely, 2^320705452854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320705452854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360758587644).

320705452854 is an abundant number, since it is smaller than the sum of its proper divisors (400811722434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320705452854 is a wasteful number, since it uses less digits than its factorization.

320705452854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134350 (or 134310 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 45.

Adding to 320705452854 its reverse (458254507023), we get a palindrome (778959959877).

The spelling of 320705452854 in words is "three hundred twenty billion, seven hundred five million, four hundred fifty-two thousand, eight hundred fifty-four".