12662891960 has 32 divisors (see below), whose sum is σ = 29730270240. Its totient is φ = 4844932224.

The previous prime is 12662891959. The next prime is 12662891999. The reversal of 12662891960 is 6919826621.

12662891960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12662891899 and 12662891908.

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 7 ways as a sum of consecutive naturals, for example, 6881087 + ... + 6882926.

It is an arithmetic number, because the mean of its divisors is an integer number (929070945).

Almost surely, 2^12662891960 is an apocalyptic number.

12662891960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12662891960 is an abundant number, since it is smaller than the sum of its proper divisors (17067378280).

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

12662891960 is a wasteful number, since it uses less digits than its factorization.

12662891960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13764047 (or 13764043 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 12662891960 in words is "twelve billion, six hundred sixty-two million, eight hundred ninety-one thousand, nine hundred sixty".