12709839966 has 32 divisors (see below), whose sum is σ = 25991255808. Its totient is φ = 4142403840.

The previous prime is 12709839943. The next prime is 12709839971. The reversal of 12709839966 is 66993890721.

12709839966 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12709839966² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83250 + ... + 179861.

It is an arithmetic number, because the mean of its divisors is an integer number (812226744).

Almost surely, 2^12709839966 is an apocalyptic number.

12709839966 is an abundant number, since it is smaller than the sum of its proper divisors (13281415842).

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

12709839966 is a wasteful number, since it uses less digits than its factorization.

12709839966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263296.

The product of its (nonzero) digits is 8817984, while the sum is 60.

The spelling of 12709839966 in words is "twelve billion, seven hundred nine million, eight hundred thirty-nine thousand, nine hundred sixty-six".