2685568320 has 168 divisors, whose sum is σ = 9639092736. Its totient is φ = 684997632.

The previous prime is 2685568309. The next prime is 2685568321. The reversal of 2685568320 is 238655862.

2685568320 is a `hidden beast` number, since 2 + 6 + 85 + 568 + 3 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685568321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45969 + ... + 86511.

It is an arithmetic number, because the mean of its divisors is an integer number (57375552).

Almost surely, 2^2685568320 is an apocalyptic number.

2685568320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2685568320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4819546368).

2685568320 is an abundant number, since it is smaller than the sum of its proper divisors (6953524416).

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

2685568320 is a wasteful number, since it uses less digits than its factorization.

2685568320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40589 (or 40576 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 2685568320 is about 51822.4692580352. The cubic root of 2685568320 is about 1389.9912564362.

The spelling of 2685568320 in words is "two billion, six hundred eighty-five million, five hundred sixty-eight thousand, three hundred twenty".