320560578413 has 8 divisors (see below), whose sum is σ = 331630411896. Its totient is φ = 309645568000.

The previous prime is 320560578397. The next prime is 320560578427. The reversal of 320560578413 is 314875065023.

It can be written as a sum of positive squares in 4 ways, for example, as 1937584324 + 318622994089 = 44018^2 + 564467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320560578413 - 2⁴ = 320560578397 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 (320560578463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38701556 + ... + 38709837.

It is an arithmetic number, because the mean of its divisors is an integer number (41453801487).

Almost surely, 2^320560578413 is an apocalyptic number.

It is an amenable number.

320560578413 is a deficient number, since it is larger than the sum of its proper divisors (11069833483).

320560578413 is a wasteful number, since it uses less digits than its factorization.

320560578413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77411535.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 320560578413 in words is "three hundred twenty billion, five hundred sixty million, five hundred seventy-eight thousand, four hundred thirteen".