12056281705 has 24 divisors (see below), whose sum is σ = 15676976088. Its totient is φ = 8896882176.

The previous prime is 12056281693. The next prime is 12056281711. The reversal of 12056281705 is 50718265021.

It can be written as a sum of positive squares in 12 ways, for example, as 9039635929 + 3016645776 = 95077^2 + 54924^2 .

It is not a de Polignac number, because 12056281705 - 2⁵ = 12056281673 is a prime.

It is a Duffinian 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, 1460269 + ... + 1468501.

It is an arithmetic number, because the mean of its divisors is an integer number (653207337).

Almost surely, 2^12056281705 is an apocalyptic number.

It is an amenable number.

12056281705 is a deficient number, since it is larger than the sum of its proper divisors (3620694383).

12056281705 is a wasteful number, since it uses less digits than its factorization.

12056281705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9997 (or 9984 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

It can be divided in two parts, 12056 and 281705, that added together give a triangular number (293761 = T₇₆₆).

The spelling of 12056281705 in words is "twelve billion, fifty-six million, two hundred eighty-one thousand, seven hundred five".