12667405368 has 32 divisors (see below), whose sum is σ = 31799932560. Its totient is φ = 4204945920.

The previous prime is 12667405339. The next prime is 12667405379. The reversal of 12667405368 is 86350476621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089255 + ... + 1100822.

Almost surely, 2^12667405368 is an apocalyptic number.

It is an amenable number.

12667405368 is an abundant number, since it is smaller than the sum of its proper divisors (19132527192).

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

12667405368 is a wasteful number, since it uses less digits than its factorization.

12667405368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190327 (or 2190323 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 12667405368 in words is "twelve billion, six hundred sixty-seven million, four hundred five thousand, three hundred sixty-eight".