12666010635 has 32 divisors (see below), whose sum is σ = 22825826880. Its totient is φ = 6662663424.

The previous prime is 12666010619. The next prime is 12666010661. The reversal of 12666010635 is 53601066621.

It is not a de Polignac number, because 12666010635 - 2⁴ = 12666010619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12666010635.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632764 + ... + 652473.

It is an arithmetic number, because the mean of its divisors is an integer number (713307090).

Almost surely, 2^12666010635 is an apocalyptic number.

12666010635 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12666010635 is a deficient number, since it is larger than the sum of its proper divisors (10159816245).

12666010635 is a wasteful number, since it uses less digits than its factorization.

12666010635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285324 (or 1285318 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 12666010635 in words is "twelve billion, six hundred sixty-six million, ten thousand, six hundred thirty-five".