320405630245 has 8 divisors (see below), whose sum is σ = 384536716416. Its totient is φ = 256291197456.

The previous prime is 320405630239. The next prime is 320405630287. The reversal of 320405630245 is 542036504023.

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 320405630245 - 2⁵ = 320405630213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320405630245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4120977 + ... + 4198006.

It is an arithmetic number, because the mean of its divisors is an integer number (48067089552).

Almost surely, 2^320405630245 is an apocalyptic number.

It is an amenable number.

320405630245 is a deficient number, since it is larger than the sum of its proper divisors (64131086171).

320405630245 is an equidigital number, since it uses as much as digits as its factorization.

320405630245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8326691.

The product of its (nonzero) digits is 86400, while the sum is 34.

It can be divided in two parts, 320 and 405630245, that multiplied together give a square (129801678400 = 360280²).

The spelling of 320405630245 in words is "three hundred twenty billion, four hundred five million, six hundred thirty thousand, two hundred forty-five".