2281681560 has 64 divisors (see below), whose sum is σ = 6941479680. Its totient is φ = 599876480.

The previous prime is 2281681547. The next prime is 2281681601. The reversal of 2281681560 is 651861822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125382 + ... + 142421.

It is an arithmetic number, because the mean of its divisors is an integer number (108460620).

Almost surely, 2^2281681560 is an apocalyptic number.

2281681560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2281681560 is an abundant number, since it is smaller than the sum of its proper divisors (4659798120).

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

2281681560 is a wasteful number, since it uses less digits than its factorization.

2281681560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267888 (or 267884 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 2281681560 is about 47766.9504992730. The cubic root of 2281681560 is about 1316.4923632604.

The spelling of 2281681560 in words is "two billion, two hundred eighty-one million, six hundred eighty-one thousand, five hundred sixty".