2320643560 has 32 divisors (see below), whose sum is σ = 5272151040. Its totient is φ = 919243584.

The previous prime is 2320643537. The next prime is 2320643573. The reversal of 2320643560 is 653460232.

It is a happy 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, 277512 + ... + 285751.

It is an arithmetic number, because the mean of its divisors is an integer number (164754720).

Almost surely, 2^2320643560 is an apocalyptic number.

2320643560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320643560 is an abundant number, since it is smaller than the sum of its proper divisors (2951507480).

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

2320643560 is a wasteful number, since it uses less digits than its factorization.

2320643560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563377 (or 563373 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 2320643560 is about 48173.0584455669. The cubic root of 2320643560 is about 1323.9435860995.

It can be divided in two parts, 23206 and 43560, that added together give a palindrome (66766).

The spelling of 2320643560 in words is "two billion, three hundred twenty million, six hundred forty-three thousand, five hundred sixty".