12265166305563 has 16 divisors (see below), whose sum is σ = 16382934387456. Its totient is φ = 8162097340320.

The previous prime is 12265166305549. The next prime is 12265166305583. The reversal of 12265166305563 is 36550366156221.

It is not a de Polignac number, because 12265166305563 - 2⁵ = 12265166305531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12265166305583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4012020 + ... + 6373902.

It is an arithmetic number, because the mean of its divisors is an integer number (1023933399216).

Almost surely, 2^{12265166305563} is an apocalyptic number.

12265166305563 is a deficient number, since it is larger than the sum of its proper divisors (4117768081893).

12265166305563 is a wasteful number, since it uses less digits than its factorization.

12265166305563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2364994.

The product of its (nonzero) digits is 5832000, while the sum is 51.

The spelling of 12265166305563 in words is "twelve trillion, two hundred sixty-five billion, one hundred sixty-six million, three hundred five thousand, five hundred sixty-three".