12141778266 has 24 divisors (see below), whose sum is σ = 26310458304. Its totient is φ = 4046756040.

The previous prime is 12141778247. The next prime is 12141778283. The reversal of 12141778266 is 66287714121.

12141778266 is a `hidden beast` number, since 1 + 214 + 177 + 8 + 266 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124681 + ... + 199571.

It is an arithmetic number, because the mean of its divisors is an integer number (1096269096).

Almost surely, 2^12141778266 is an apocalyptic number.

12141778266 is an abundant number, since it is smaller than the sum of its proper divisors (14168680038).

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

12141778266 is a wasteful number, since it uses less digits than its factorization.

12141778266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83906 (or 83903 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The spelling of 12141778266 in words is "twelve billion, one hundred forty-one million, seven hundred seventy-eight thousand, two hundred sixty-six".