12665301672 has 16 divisors (see below), whose sum is σ = 31663254240. Its totient is φ = 4221767216.

The previous prime is 12665301667. The next prime is 12665301683. The reversal of 12665301672 is 27610356621.

12665301672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12665301672.

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 3 ways as a sum of consecutive naturals, for example, 263860428 + ... + 263860475.

It is an arithmetic number, because the mean of its divisors is an integer number (1978953390).

Almost surely, 2^12665301672 is an apocalyptic number.

12665301672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12665301672 is an abundant number, since it is smaller than the sum of its proper divisors (18997952568).

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

12665301672 is a wasteful number, since it uses less digits than its factorization.

12665301672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527720912 (or 527720908 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 12665301672 in words is "twelve billion, six hundred sixty-five million, three hundred one thousand, six hundred seventy-two".