2239666560 has 192 divisors, whose sum is σ = 7899353280. Its totient is φ = 584466432.

The previous prime is 2239666543. The next prime is 2239666601. The reversal of 2239666560 is 656669322.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×2239666560² = 10032212599964467200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266584 + ... + 274856.

It is an arithmetic number, because the mean of its divisors is an integer number (41142465).

Almost surely, 2^2239666560 is an apocalyptic number.

2239666560 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 2239666560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3949676640).

2239666560 is an abundant number, since it is smaller than the sum of its proper divisors (5659686720).

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

2239666560 is a wasteful number, since it uses less digits than its factorization.

2239666560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8345 (or 8330 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The square root of 2239666560 is about 47325.1155307623. The cubic root of 2239666560 is about 1308.3615979758.

The spelling of 2239666560 in words is "two billion, two hundred thirty-nine million, six hundred sixty-six thousand, five hundred sixty".