320206525340 has 48 divisors (see below), whose sum is σ = 741000314208. Its totient is φ = 115480560384.

The previous prime is 320206525319. The next prime is 320206525349. The reversal of 320206525340 is 43525602023.

It is a junction number, because it is equal to n+sod(n) for n = 320206525297 and 320206525306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320206525349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14309327 + ... + 14331686.

It is an arithmetic number, because the mean of its divisors is an integer number (15437506546).

Almost surely, 2^320206525340 is an apocalyptic number.

It is an amenable number.

320206525340 is an abundant number, since it is smaller than the sum of its proper divisors (420793788868).

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

320206525340 is a wasteful number, since it uses less digits than its factorization.

320206525340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28641078 (or 28641076 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

The spelling of 320206525340 in words is "three hundred twenty billion, two hundred six million, five hundred twenty-five thousand, three hundred forty".