12289266660 has 48 divisors (see below), whose sum is σ = 37538125632. Its totient is φ = 2979216000.

The previous prime is 12289266653. The next prime is 12289266679. The reversal of 12289266660 is 6666298221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9309391 + ... + 9310710.

It is an arithmetic number, because the mean of its divisors is an integer number (782044284).

Almost surely, 2^12289266660 is an apocalyptic number.

12289266660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12289266660 is an abundant number, since it is smaller than the sum of its proper divisors (25248858972).

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

12289266660 is a wasteful number, since it uses less digits than its factorization.

12289266660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18620124 (or 18620122 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 12289266660 in words is "twelve billion, two hundred eighty-nine million, two hundred sixty-six thousand, six hundred sixty".