320737033493 has 16 divisors (see below), whose sum is σ = 325898732016. Its totient is φ = 315617702400.

The previous prime is 320737033459. The next prime is 320737033511. The reversal of 320737033493 is 394330737023.

It can be written as a sum of positive squares in 8 ways, for example, as 51623020849 + 269114012644 = 227207^2 + 518762^2 .

It is a cyclic number.

It is not a de Polignac number, because 320737033493 - 2²⁴ = 320720256277 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 (320737033093) 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, 20147705 + ... + 20163617.

It is an arithmetic number, because the mean of its divisors is an integer number (20368670751).

Almost surely, 2^320737033493 is an apocalyptic number.

It is an amenable number.

320737033493 is a deficient number, since it is larger than the sum of its proper divisors (5161698523).

320737033493 is a wasteful number, since it uses less digits than its factorization.

320737033493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17224.

The product of its (nonzero) digits is 857304, while the sum is 44.

The spelling of 320737033493 in words is "three hundred twenty billion, seven hundred thirty-seven million, thirty-three thousand, four hundred ninety-three".