12663366105 has 32 divisors (see below), whose sum is σ = 22768655616. Its totient is φ = 5963215104.

The previous prime is 12663366007. The next prime is 12663366119. The reversal of 12663366105 is 50166336621.

It is a happy number.

It is not a de Polignac number, because 12663366105 - 2¹² = 12663362009 is a prime.

It is a super-2 number, since 2×12663366105² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 31 ways as a sum of consecutive naturals, for example, 1407262 + ... + 1416231.

It is an arithmetic number, because the mean of its divisors is an integer number (711520488).

Almost surely, 2^12663366105 is an apocalyptic number.

12663366105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12663366105 is a deficient number, since it is larger than the sum of its proper divisors (10105289511).

12663366105 is a wasteful number, since it uses less digits than its factorization.

12663366105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2823537.

The product of its (nonzero) digits is 116640, while the sum is 39.

The spelling of 12663366105 in words is "twelve billion, six hundred sixty-three million, three hundred sixty-six thousand, one hundred five".