12461264502566 has 24 divisors (see below), whose sum is σ = 20776488488280. Its totient is φ = 5600568306080.

The previous prime is 12461264502487. The next prime is 12461264502641. The reversal of 12461264502566 is 66520546216421.

It is a super-3 number, since 3×12461264502566³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 289264016 + ... + 289307091.

It is an arithmetic number, because the mean of its divisors is an integer number (865687020345).

Almost surely, 2^{12461264502566} is an apocalyptic number.

12461264502566 is a deficient number, since it is larger than the sum of its proper divisors (8315223985714).

12461264502566 is a wasteful number, since it uses less digits than its factorization.

12461264502566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578571220 (or 578571209 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 12461264502566 in words is "twelve trillion, four hundred sixty-one billion, two hundred sixty-four million, five hundred two thousand, five hundred sixty-six".