12266414861 has 4 divisors (see below), whose sum is σ = 12266968032. Its totient is φ = 12265861692.

The previous prime is 12266414851. The next prime is 12266414903. The reversal of 12266414861 is 16841466221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12266414861 - 2²² = 12262220557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12266414851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241871 + ... + 288156.

It is an arithmetic number, because the mean of its divisors is an integer number (3066742008).

Almost surely, 2^12266414861 is an apocalyptic number.

It is an amenable number.

12266414861 is a deficient number, since it is larger than the sum of its proper divisors (553171).

12266414861 is an equidigital number, since it uses as much as digits as its factorization.

12266414861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553170.

The product of its digits is 110592, while the sum is 41.

The spelling of 12266414861 in words is "twelve billion, two hundred sixty-six million, four hundred fourteen thousand, eight hundred sixty-one".