12051775561560 has 128 divisors (see below), whose sum is σ = 42745213900800. Its totient is φ = 2659702187520.

The previous prime is 12051775561559. The next prime is 12051775561583. The reversal of 12051775561560 is 6516557715021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247343776 + ... + 247392495.

It is an arithmetic number, because the mean of its divisors is an integer number (333946983600).

Almost surely, 2^{12051775561560} is an apocalyptic number.

12051775561560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12051775561560 is an abundant number, since it is smaller than the sum of its proper divisors (30693438339240).

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

12051775561560 is a wasteful number, since it uses less digits than its factorization.

12051775561560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494736321 (or 494736317 counting only the distinct ones).

The product of its (nonzero) digits is 2205000, while the sum is 51.

The spelling of 12051775561560 in words is "twelve trillion, fifty-one billion, seven hundred seventy-five million, five hundred sixty-one thousand, five hundred sixty".