320943723460 has 48 divisors (see below), whose sum is σ = 681058632240. Its totient is φ = 127030026240.

The previous prime is 320943723449. The next prime is 320943723473. The reversal of 320943723460 is 64327349023.

It can be written as a sum of positive squares in 8 ways, for example, as 5731095616 + 315212627844 = 75704^2 + 561438^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13104106 + ... + 13128574.

It is an arithmetic number, because the mean of its divisors is an integer number (14188721505).

Almost surely, 2^320943723460 is an apocalyptic number.

It is an amenable number.

320943723460 is an abundant number, since it is smaller than the sum of its proper divisors (360114908780).

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

320943723460 is a wasteful number, since it uses less digits than its factorization.

320943723460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31336 (or 31334 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 43.

The spelling of 320943723460 in words is "three hundred twenty billion, nine hundred forty-three million, seven hundred twenty-three thousand, four hundred sixty".