12265535566426 has 16 divisors (see below), whose sum is σ = 19377652296384. Its totient is φ = 5811302098624.

The previous prime is 12265535566409. The next prime is 12265535566457. The reversal of 12265535566426 is 62466553556221.

It is a super-2 number, since 2×12265535566426² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245986095 + ... + 1245995938.

It is an arithmetic number, because the mean of its divisors is an integer number (1211103268524).

Almost surely, 2^{12265535566426} is an apocalyptic number.

12265535566426 is a deficient number, since it is larger than the sum of its proper divisors (7112116729958).

12265535566426 is a wasteful number, since it uses less digits than its factorization.

12265535566426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491982165.

The product of its digits is 77760000, while the sum is 58.

The spelling of 12265535566426 in words is "twelve trillion, two hundred sixty-five billion, five hundred thirty-five million, five hundred sixty-six thousand, four hundred twenty-six".